JP2001333184A - Communication system and communication terminal and communication network used by this communication system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a communication system that can simply and surely select a communication service class convenient for both a caller side and a called party. SOLUTION: A control section 21 of a communication terminal 2 receives designation by a caller user of an object service at call transmission and transmits notice information denoting its object service to a communication network 1. The communication network 1 transfers this notice information to a communication terminal 2 being a destination. The control section 21 receives the designation by a called user of the permissible service among the object services denoted by the notice information transferred from the communication network 1 and transmits the reply information denoting the permissible service to the communication network 1. The communication network 1 transfers the reply information to the caller communication terminal 2. The control section 21 selects the use service from the permissible information denoted in the reply information transferred from the communication network 1 at the call transmission and makes a call to conduct communication for the use service.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a plurality of communication terminals connected to a predetermined communication network, and a plurality of communication terminals provided between the communication terminals via the communication network. The present invention relates to a communication system that enables communication by selectively using one of service types, and a communication terminal and a communication network used in the communication system.

[0002]

2. Description of the Related Art In recent years, there has been a remarkable increase in the number of functions and functions of communication terminals, and one terminal supports a short message service, a data communication service, and various additional services in addition to a voice call. Is becoming more common. In the future, image communication will be added to these services, and services from multiple operators will be provided by roaming,
Multiple different types of communication networks (PDC / PHS
Etc.) are also considered to be general.

As described above, the types of various communication services provided by a certain communication network include not only value-added service types such as a short message service but also types of transmission line bearers such as circuit switching / packet communication. ,
Furthermore, considering that types such as a company and a network are included, a very large number of types of communication services can be used.

In actual communication, any one of these many communication service types is selectively used. However, the selection of the communication service type to be used is performed by the user of the communication terminal on the calling side. Becomes

[0005] By the way, various communication terminals are accommodated in a network, and not all of these communication terminals support the same communication service. For this reason,
The communication service type selected by the calling user is not always available on the receiving communication terminal, and communication is performed when a communication service type that cannot be used on the receiving communication terminal is selected. Can not.

Therefore, the user of the communication terminal on the calling side must remember the communication service types that can be used by the communication terminal of the call destination, and select an appropriate communication service type according to the call destination. , Very troublesome. In addition, when the user of the communication terminal on the calling side does not know at all the communication service types that can be used by the communication terminal of the call destination, it is necessary to repeat the call while changing the communication service type until communication can be performed correctly, which is troublesome. At the same time, a useless call occurs.

[0007] One of the means for solving such a problem is as follows.
There is a method of automatically selecting the same communication service type as the last time by using the incoming call history storage or the like. However, even when communicating with the same partner, the same communication service is not always used, and if another communication service is desired to be used, the above-described method cannot be used.

Further, even if the communication terminal on the receiving side corresponds to the selected communication service type, there are cases where the user on the receiving side does not wish to use the communication service. It is not preferable to perform service communication.

[0009] That is, for example, if a voice call cannot be received but a short message can be received due to circumstances such as during a conference, etc., if the calling party first makes a voice call, the called party rejects the incoming call. And one useless call occurs. Furthermore, if the transmitting side does not know or notice that the short message can be received, the transmitting side may abandon the communication on the spot even if there is an urgent business. In such a case, the advantage that the communication terminal provides a plurality of communication service types cannot be utilized.

[0010] One of the solutions to this problem is to register the state of the user (the state of the communication terminal) in a server connected to the network, cross-reference state information within certain group members, and A service has been devised that enables communication by selecting and specifying an appropriate communication service type based on the state of a receiving user. However, since this service is a registration system, it can be used only between group members. In addition, traffic for state registration and state reference is required each time, and furthermore, it can be said that the private state of the user is constantly monitored, and there are many problems in practical use.

[0011]

As described above, conventionally,
In principle, the communication service type used by the calling party is selected, so it is difficult to select an appropriate communication service type, which increases the burden on the caller and causes unnecessary calls. There was a defect.

The present invention has been made in view of such circumstances, and an object of the present invention is to simply and reliably select a communication service type convenient for both the calling side and the called side. To make it possible.

[0013]

SUMMARY OF THE INVENTION In order to achieve the above object, the present invention relates to a communication system comprising a first communication terminal having a calling function or a second communication terminal having a receiving function in a predetermined communication network. And communication between these communication terminals via the communication network by selectively using one of a plurality of communication service types provided by the communication network. In a communication system, the first
A candidate service designation receiving means provided in the communication terminal for receiving designation of at least one communication service type desired by the user; and a communication service provided in the first communication terminal and accepted by the candidate service designation receiving means Notification information sending means for sending notification information indicating the type to the communication network after designating a destination; and sending the notification information provided in the communication network and sent by the notification information sending means. A notification information transfer unit, such as a notification information transfer function, for transferring the communication information to the communication terminal designated as the destination; and a communication provided in the second communication terminal and indicated by the notification information transferred by the notification information transfer unit. An allowed service designation accepting means for accepting designation of a communication service type which is permitted to be used by a user of the service type; Response information transmission means for transmitting, to the communication network, response information indicating the type of communication service received by the allowable service designation reception means; and transmission information provided by the response information transmission means provided in the communication network. Response information transfer means such as, for example, response information transfer means for transferring the received response information to the first communication terminal that has transmitted the notification information transferred to the second communication terminal by the notification information transfer means; Communication with the destination second communication terminal in a predetermined communication service type among communication service types provided in the first communication terminal and indicated by the response information transferred by the response information transfer means. Communication start means for performing a process for starting the communication.

[0014] By adopting such means, the first communication terminal on the transmitting side accepts the designation of the communication service type that the user on the transmitting side desires to use, and notifies the designated communication service type. Sent out as information,
It is given to the second communication terminal on the receiving side by the communication network. The second communication terminal accepts the designation of the communication service type indicated by the notification information that the user on the receiving side permits use of, and transmits the specified communication service type as response information, Source 1
Given to the communication terminal. Then, the first communication terminal of the transmission source communicates with the second communication terminal of the transmission destination in a predetermined communication service type (for example, one selected by the user on the transmission side) among the communication service types indicated in the response information. Is started. Therefore, the communication service type that the receiving-side user is allowed to use is confirmed before starting communication,
Actual communication is performed in one of the permissible communication service types, and communication is performed in an appropriate communication service type according to the circumstances of the receiving side. Then, on the receiving side, the allowable service may be selected within the range of the candidate service selected by the transmitting side, so that the burden on the user can be minimized even when the user performs the work.

Further, according to the present invention, the allowable service designation receiving means of the second communication terminal may receive a designation of an allowance priority regarding at least a part of communication service types usable by the communication terminal. Priority designation receiving means realized by software processing, priority storing means such as a memory unit for storing the priority received by the priority designation receiving means, and Among the communication service types indicated in the notification information transferred by the notification information transfer unit, a communication service type that allows a predetermined number of communication service types having higher priority stored in the priority storage unit And automatic selection means for automatically selecting an allowable service realized by software processing of the control unit 21, for example.

[0016] By adopting such means, an allowable service is automatically selected from the candidate services based on the prioritization set by the user in advance. Therefore,
This eliminates the need for the user on the receiving side to perform the operation each time a call is received.

Further, the present invention provides the second communication terminal, wherein the permissible service designation receiving means has a function of designating a communication service type which is permitted to be used for communication with any communication terminal. Acceptable, for example, per-terminal permissible service receiving means realized by software processing of the control unit, and a communication service type received by the per-terminal permissible service receiving means are stored in association with a communication terminal targeted for, for example, memory. Out of the communication service type indicated in the notification information transferred by the notification information transfer unit provided in the communication network, and transmitting the notification information to the allowable service storage unit. Only those that match the communication service type stored in association with the original communication terminal are allowed. Automatically selected, and composed of a permissible service automatic selection means is realized by software processing of, for example, the control unit.

[0018] By adopting such means, the selection of the allowable service from the candidate services is automatically performed based on the user's prior condition setting for an arbitrary communication terminal. Therefore, it is not necessary for the user on the receiving side to perform the operation each time a call is received.

[0019]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings.

FIG. 1 is a block diagram showing a main configuration of a communication system according to this embodiment.

As shown in FIG. 1, the communication system according to this embodiment includes a communication network 1 in which a large number (n) of communication terminals 2 (2-1)
~ 2-n) and the message storage system 3 are connected to each other.

The communication network 1 is, for example, a PSTN (Public Swi
tched Telephone Network), ISDN (Integrated Se
rvices Digital Network), PDC (Personal Digital)
Cellular) network or PHS (Personal Handyphone)
System), which is based on a well-known communication network such as a voice (analog) communication, image communication, data communication, direct mail communication, stored mail communication, etc. I do. The stored mail communication is a service realized in cooperation with the message storage system 3.

The message storage system 3 stores a message in response to a request from the communication network 1, and stores the message.
Outputs the saved message in response to a request from. The message storage system 3 has a function of storing character messages in order to realize stored mail communication.
In addition, it may have a function of storing other types of messages such as voices and images.

The communication network 1 has a notification information transfer function 1a and a response information transfer function 1b, in addition to the functions of the above-described basic known communication network.

The notification information transfer function 1a transfers notification information (described later) output from the communication terminal 2 to be transmitted to the destination communication terminal 2 without setting a user information channel.

The response information transfer function 1b sets a user information channel for response information (described later) output as a response to the notification information from the destination communication terminal 2 to which the notification information has been transferred by the notification information transfer function 1a. The transfer is performed to the communication terminal 2 of the transmission source without performing.

As the communication terminal 2, various types can be connected. In FIG.
This is shown as a configuration 2-1. For the sake of simplicity, the following description assumes that all communication terminals 2 have the same configuration as communication terminal 2-1.

[0028] As shown in FIG.
1, a memory unit 22, a communication unit 23, a line interface (line I / F) 24, an operation unit 25, a display unit 26, a transmission / reception unit 27, a camera unit 28, and an incoming call notification unit 29.

The memory unit 22, the communication unit 23, the line interface (line I / F) 24, the operation unit 25, the display unit 26, the transmission / reception unit 27, the camera unit 28, and the incoming call notification unit 2
9 are connected to the control unit 21. The communication unit 23 and the line interface 24 are connected to the control unit 2
It is also directly connected without going through 1.

The control unit 21 includes, for example, a CPU, a ROM, an R
It has an AM, a bus system, various input / output interfaces, various drive circuits, and the like, and performs overall control of connected units so as to realize operation as a communication terminal. The control unit 21 realizes such control by software processing. The control means realized by the software processing includes a well-known general control means in a communication terminal and a candidate service designation Receiving unit 21a, notification information sending unit 21b, allowable service designation receiving unit 21c, response information sending unit 21d
And communication start means 21e.

Here, the candidate service designation receiving means 21a
Prior to making a call when the own device is the calling side, a communication service type (hereinafter, a candidate service type) that a user of the own device (hereinafter referred to as a calling user) wants to use in communication started by the call. Designation).

The notification information sending means 21b sends the communication service type received by the candidate service designation receiving means 21a to the communication terminal
, And sends it to the communication network 1 before the user information channel is connected.

When the self-device is the receiving side, the allowable service designation receiving means 21c selects one of the communication service types indicated by the notification information transmitted from the communication terminal 2 on the transmitting side and transferred by the communication network 1. Accepts a specification of a communication service type (hereinafter, referred to as an allowable service type) which is permitted to be used by a user of the own apparatus (hereinafter, referred to as an incoming user).

The response information sending means 21d, when the own apparatus is the receiving side, accepts the permitted service designation receiving means 21c.
To generate the response information for notifying the permitted communication service type to the communication terminal 2 of the transmission source, and transmits the generated communication information to the communication network 1 before the user information channel is connected.

The communication start means 21e, when its own device is the transmitting side, a response transmitted from the destination communication terminal 2 as a response to the notification information transmitted by the notification information transmitting means 21b and transferred by the communication network 1. Processing is performed to start communication using one of the allowable communication service types indicated in the information.

The memory section 22 is realized using, for example, a nonvolatile memory. The memory unit 22 is used to store memory dial information, communication service type information that can be supported by the own device, or arbitrary information such as past call history.

The communication section 23 has an encoding / decoding circuit, a modulation / demodulation circuit, and the like, and performs signal transmission via the communication network 1.

A communication line accommodated in the communication network 1 is connected to the line interface 24. The line interface 24 performs input / output processing of signals related to the communication line, various kinds of monitoring processing related to the line, and the like. Note that the communication line may be wired or wireless. Further, there may be two or more communication lines connected to a plurality of different communication networks. In some cases, even one communication line can simultaneously communicate with different connection destinations.

The operation unit 25 is for receiving various instruction inputs from the user to the control unit 21.
For example, it has a ten key 25a, a cursor movement key 25b, a select key 25c, a cancel key 25d, and a start key 25e.

The numeric keypad 25a mainly receives input of a destination telephone number and characters, designation of an index number assigned to a function, and the like. Cursor movement key 2
5b mainly accepts cursor movement designation. The select key 25c mainly receives an item selection operation. The cancel key 25d mainly receives designation of deselection of a selected item. And start key 2
5e accepts the designation of various operations and the start designation of various operations such as transmission and response.

The display unit 26 uses, for example, an LCD, and controls the control unit 21 to perform a visual display of various information to be notified to the user, a display of a menu image for accepting a user's instruction operation, and the like. Do it below. In addition, TV
When the telephone communication is executed, the image sent from the other party is displayed under the control of the control unit 21.

The transmission / reception unit 27 includes a transmitter including, for example, a microphone and a receiver including, for example, a speaker, and is realized in the form of, for example, a handset or a headset.

The camera unit 28 uses, for example, a CCD image pickup device or a CMOS image pickup device, and shoots an arbitrary image on the side of the own device, such as the face of the user of the own device, and generates corresponding image data.

The incoming notification unit 29 has a sounder 29a and an LED 29b. And the incoming call notification unit 29
When an incoming call occurs, these sounder 29a and LED 29b
Is driven by the control unit 21 to notify the user of the occurrence of an incoming call by outputting a notification sound or emitting light.

Next, the operation of the communication system configured as described above will be described.

First, when the calling user indicates the intention to make a call, the control unit 21 executes a calling process as shown in FIGS.

In the calling process, the control unit 21 first receives the telephone number of the communication terminal 2 to which the call is made by the caller (step ST1). When the designation of the telephone number is completed, the calling user presses the start key 25e.
Waits for this (step ST2).

If the start key 25e is pressed, the control section 21 checks the candidate selection method (step ST3). The candidate selection method is a method of selecting a candidate service type, and in this embodiment, the user can select one of three methods of “designation by operation”, “designation by setting”, and “non-designation”. In this candidate selection method, the one registered in advance by the user may be used constantly, or the user may be selected every time.

When "designation by interactive operation" is selected as the candidate selection method, the control unit 21 stores the information, which is stored in the memory unit 22 and describes the type of communication service that can be used by its own device. Reading (step ST4),
A list of communication service types indicated by the information is displayed on the display unit 26 (step ST5). The display unit 26 at this time
FIG. 4A shows an example of the display in FIG. In the display example shown in this figure, the communication service type that can be used by the own device is TV phone,
The case where there are four types of voice telephone, direct mail, and stored mail is shown. A cursor C for designating any of these communication service types is also displayed. At this time, the display order of the items related to the respective communication service types may be appropriately changed by the user's priority setting or the like.

In this state, the calling user depresses the cursor movement key 25b to move the cursor C up and down to match the communication service type desired to be used, that is, the communication service type desired to be set as a candidate service, and presses the select key 25c. . When the user wants to cancel the selection of the already selected communication service type, the calling user positions the cursor C on the corresponding item and presses the cancel key 25d.

The control unit 21 receives the setting operation of the candidate service by the calling user and updates the display according to the operation (step ST6). Display unit 2 when setting operation of this candidate service is being performed
FIG. 4B shows an example of display at No. 6. The display example shown in this figure shows a state in which a TV phone, a voice call, and a direct mail are respectively set as candidate services, and a mark M indicating this is displayed in those items.

When all the items of the communication service type to be set as the candidate services have been selected, the calling user presses the start key 25e to notify the control unit 21 of the selection.

The control unit 21 waits for the start key 25e to be pressed while receiving the setting operation of the candidate service (step ST7). Then, when the start key 25e is pressed, the communication service type corresponding to the item selected at that time is set as a candidate service (step ST8).

On the other hand, when "designation by setting" is selected as the candidate selection method, the control unit 21 reads out the setting conditions from the memory unit 22 (step ST9) and determines a communication service type that matches the conditions as a candidate service. (Step ST10). Note that the setting condition is that the user arbitrarily sets in advance which communication service type is set as the candidate service. This setting condition,
The setting may be performed for each transmission destination, or may be performed for each time zone, and an appropriate setting condition may be read out according to the condition at that time.

When "unspecified" is selected as the candidate selection method, the control unit 21 sets the candidate service to "none".
Is set (step ST11).

Now, steps ST8 and ST10
After setting the candidate service in any of the steps ST11 and ST11, the control unit 21 connects a communication line to the communication network 1 (step ST12). Subsequently, the control unit 21 transmits a transmission notification signal to which the notification information indicating the set candidate service is added to the communication network 1 (step ST13).

The outgoing call notification signal transmitted at this time is, for example, the outgoing call notifying signal I1 as shown in FIG. 5 when the candidate service is set, and is shown in FIG. 6 when the candidate service is not set. Outgoing notification signal I as shown
Let it be 2. In the examples shown in these figures, the transmission notification signals I1, I
2 is the telephone number information I11 of the communication terminal 2 on the calling side.
And telephone number information I12 of the communication terminal 2 of the transmission destination (reception side)
And a call setup signal consisting of: And the transmission notification signal I1
Further, notification information I13 is added. In this figure, the notification information I13 exemplifies the case where the TV phone, the voice call, and the direct mail are respectively set as the candidate services, and the candidate service information I indicating them is shown.
131, I132, and I133. Note that the telephone number information I11 may be added to the communication network 1 instead of being inserted into the transmission notification signal by the communication terminal 2 on the transmission side.

When the transmission of the transmission notification signal is completed, the control section 21 shifts to a state of waiting for the arrival of the notification response signal (step ST14 in FIG. 3).

The transmission notification signal transmitted from the communication terminal 2 on the transmission side is first transmitted to the communication network as shown in FIG. 7 (S1). Then, the communication network 1 sends the communication notification signal without terminating the user information channel between the communication terminal 2 on the calling side and the communication terminal 2 on the calling side after terminating the incoming call notification signal once. Transfer to the previous communication terminal 2 (S2).

The control unit 21 of the communication terminal 2 to which the call notification signal has been given from the communication network 1 starts the incoming call processing as shown in FIG. 8 and FIG.

In the incoming call processing, control unit 21 first receives a call notification signal provided from communication network 1 (step ST51).

Next, the control unit 21 interprets the received call notification signal to determine the telephone number of the caller and the set candidate service, and performs condition matching to determine the type of the communication service which is regarded as a candidate service. Among them, those which can be used are selected (step ST52).

The condition to be verified here is at least a communication service type that can be used by the own device. In addition, the presence or absence of the calling terminal number information I11, the condition set by the user in association with the calling telephone number, and the like may be considered. That is, when there is no calling terminal number information I11 or for a specific partner, a part of communication service types that can be used by the own device may be prohibited.

Subsequently, the control unit 21 confirms the number of communication service types selected as being permitted to be used (step ST53).

Here, when only one communication service type is selected as being permitted to be used, the control unit 21
Is displayed on the display unit 26 while displaying the telephone number of the caller or the name registered in the memory dial (only when the telephone number of the caller is notified) and the only selected communication service type. Is driven to perform an incoming call notification (step ST54).

Thereafter, the control unit 21 operates the operation unit 2
5 and waits for any key to be pressed (step ST55). Here, if any key is pressed, the control unit 21 stops the incoming call notification if the incoming call notification is being performed (step ST56).

By the way, when the incoming call notification is made, the display unit 2
6 displays only one communication service type, the receiving user can use the start key 25 to allow the start of communication using the displayed communication service type.
e, otherwise press the end key (not shown).

Therefore, control unit 21 determines whether the pressed key is the end key, start key 25e, or any other key (steps ST57 and ST58).

Here, if neither the end key nor the start key 25e is pressed, the control unit 2
1 returns the process to step ST55, and waits for the end key or the start key 25e to be pressed in steps ST55 to ST58.

If the start key 25e is pressed, the control unit 21 sets the only communication service type selected as the one whose use is allowable as the allowable service (step ST59).

On the other hand, when there are a plurality of communication service types selected as being permitted to be used, the control unit 21
Is displayed on the display unit 26 while displaying the telephone number of the caller or the name registered in the memory dial (only when the caller's telephone number is notified) and the list of the selected communication service types. Is driven to notify the incoming call (step ST60). FIG. 4C shows a display example on the display unit 26 when the call notification signal shown in FIG. 5 is given.
Shown in

Thereafter, the control unit 21 operates the operation unit 2
5 and waits for any key to be pressed (step ST61). Here, if any key is pressed, the control unit 21 stops the incoming call notification if the incoming call notification is being performed (step ST62).

By the way, when an incoming call notification is made, the display unit 2
In the case where a plurality of communication service types are displayed in 6, the receiving user is allowed to start communication using any of the displayed communication service types (a plurality of communication service types can be selected). After the type is selected, the start key 25e is pressed, and if not, the end key (not shown) is pressed.

Therefore, control unit 21 determines which of the end key, start key 25e and other keys is pressed (steps ST63 and ST64).

Here, if neither the end key nor the start key 25e is pressed, the control unit 2
1 accepts the key operation as a setting operation of the permissible service, and updates the display according to the operation (step ST65). The reception of the setting operation of the permissible service is performed in the same manner as the reception of the setting operation of the candidate service in step ST6 of the outgoing call process. FIG. 4D illustrates a display example on the display unit 26 when the setting operation of the allowable service is performed. The display examples shown in this figure are TV phone, voice phone and direct mail.
It shows that two of the candidate services, voice call and direct mail, are set as acceptable services,
A mark M indicating this is displayed on those items.

On the other hand, if start key 25e is pressed, control unit 21 sets the communication service type selected and designated by the receiving user to the permitted service (step ST66).

Now, when there is no communication service type selected as acceptable for use, or when it is determined in step ST57 or ST63 that the end key has been pressed during the key press standby in step ST55 or ST61. The control unit 21 sets the allowable service to “none” (step ST67).

Then, step ST59, step ST
If the permitted service is set in either step 66 or step ST67, the control unit 21 sends a notification response signal to which the response information indicating the set permitted service is added to the communication network 1 (step ST67). ST68).

The notification response signal transmitted at this time is, for example, as shown in FIG. In the example shown in this figure, a case where a voice telephone and a direct mail are respectively set as candidate services is illustrated, and candidate service information I311, I31 indicating these are set.
2 is included.

When the transmission of the notification response signal is completed, the control unit 21 confirms whether or not the allowable service is set to “none” (step ST69 in FIG. 8), and if so, rejects the incoming call. This completes the current incoming call process. However, if at least one allowable service has been set, control unit 21 waits for the arrival of the type designation signal (step ST70).
Move to

The notification response signal sent from the communication terminal 2 on the receiving side is first transmitted to the communication network as shown in FIG. 7 (S3). Then, the communication network 1 transmits the notification response signal without terminating the user information channel between the communication terminal 2 on the transmitting side and the communication terminal 2 on the transmission side after terminating the notification response signal that has arrived. (S4).

After transmitting the transmission notification signal, the control unit 21 of the communication terminal 2 on the transmission side waits for the arrival of the notification response signal as described above (step ST14 in FIG. 3).
It has become. Therefore, as described above, the control response unit 21 exits from the state of waiting for the arrival of the notification response signal by receiving the notification response signal from the communication network 1.

In this case, control unit 21 receives the given notification response signal (step ST15). Then, it recognizes the received notification response signal and confirms whether at least one allowable service has been set (step ST1).
6).

If the allowable service is set to "none", it is regarded that the incoming call has been rejected at the destination (the receiving side), and a call failure process is performed (step ST17). The processing at the time of calling is ended.

On the other hand, if at least one allowable service has been set, the control unit 21 performs condition comparison with a condition set in advance and stored in the memory unit 22 (step ST18). As a result of the comparison, if it is determined that one or more communication service types that can be activated are included in the allowable service, the control unit 21 determines whether the corresponding allowable service is only one or not. Alternatively, it is determined whether there are two or more (step ST19).

If there is only one permissible service, control unit 21 displays the only permissible service on display unit 26 (step ST20).

When such a display is made, the calling user presses the start key 25e when it is decided to make a call using the permissible service.

The control unit 21 waits for the start key 25e to be pressed in the state where the above-mentioned display is performed (step ST21). If the start key 25e is pressed, the control unit 21 sets the only permissible service to the service to be used (step ST22).

On the other hand, if there are two or more permissible services, control unit 21 displays a list of the plurality of permissible services on display unit 26 (step ST23). FIG. 4E shows a display example on the display unit 26 when the notification response signal shown in FIG. 10 is given.

When such a display is made, the calling user selects one of the plurality of displayed permitted services to be used for communication, and positions the cursor C on the permitted service on the display. Perform the cursor operation as follows. Then, the calling user sets the start key 25e with the cursor C set on the permissible service to be used in this manner.
Press.

The control unit 21 accepts such a cursor operation by the transmitting user and updates the display according to the operation (step ST24). Further, the control unit 21 waits for the start key 25e to be pressed while receiving the cursor operation (Step S).
T25). Then, when the start key 25e is pressed, the permissible service corresponding to the cursor at that time is set as the service to be used (step ST26).

Now, step ST22 and step S22
After setting the used service in any of T26, the control unit 21 sends a type designation signal indicating the set used service to the communication network 1 (step ST27).

The type designation signal transmitted at this time is, for example, as shown by the reference numeral I4 in FIG. In the example shown in this figure, the case where the voice telephone is set as the use service is illustrated, and the type designation information I4 indicating the use service information I411 indicating the same is shown.
1 is included.

When the transmission of the type designation signal is completed, the control section 21 shifts to a state of waiting for an incoming response signal (step ST28).

The type designation signal transmitted from the communication terminal 2 on the transmitting side is first transmitted to the communication network as shown in FIG. 7 (S5). Then, the communication network 1 terminates the arriving call notification signal once, and receives the type designation signal without setting the user information channel between the communication terminal 2 on the calling side and the communication terminal 2 on the call destination. Transfer to the previous communication terminal 2 (S6).

After transmitting the notification response signal, the control unit 21 of the communication terminal 2 on the receiving side waits for the arrival of the type designation signal as described above (step ST70 in FIG. 9).
It has become. Therefore, as described above, the control unit 21 exits from the state of waiting for the arrival of the type designation signal by receiving the type designation signal from the communication network 1.

In this case, control unit 21 receives the given type designation signal (step ST71). Then, the control unit 21 recognizes the received type designation signal and displays the service to be used on the display unit 26 (step ST7).
2).

When such a display is made, the calling user presses the start key 25e when deciding to perform communication using the service.

The control unit 21 waits for the start key 25e to be pressed in the state where the above display is performed (step ST73). If the start key 25e is pressed, the control unit 21 sends an incoming response signal for notifying the user to the communication network 1 (step S).
T74). As the incoming response signal, for example, the communication network 1
The one according to the response signal in is used.

The incoming call response signal transmitted from the communication terminal 2 on the receiving side is first transmitted to the communication network as shown in FIG. 7 (S7). Then, the communication network 1 terminates the incoming call response signal once and transmits the call response signal without setting the user information channel between the communication terminal 2 on the calling side and the communication terminal 2 on the call destination. Transfer to the previous communication terminal 2 (S8).

After transmitting the type designation signal, the control unit 21 of the communication terminal 2 on the transmitting side waits for the arrival of the incoming response signal as described above (step ST28 in FIG. 3).
It has become. Therefore, as described above, the control unit 21 exits from the state of waiting for the arrival of the incoming response signal by receiving the incoming response signal from the communication network 1.

In this case, control unit 21 receives the given incoming response signal (step ST29).

After the transmission / reception of the incoming call response signal, the control units 21 of the communication terminal 2 on the calling side and the communication terminal 2 on the called side perform connection processing of the user information channel (FIG. 3). Step ST30 in FIG. 9 and step ST75 in FIG. 9), and the communication network 1 mediates the connection of the user information channel, so that the user information channel C1 is connected to the communication terminal 2 on the calling side and the communication terminal 2 on the called side as shown in FIG. Communication is performed between the communication terminal 2 and the communication service type set here as the service to be used.

As described above, according to the present embodiment, as a pre-process for setting the user information channel, the communication service type desired by the calling user is presented to the called user, and the communication service type permitted by the called user is selected. Is received by the communication terminal 2 on the receiving side. Then, the communication service type selected by the receiving user and selected as acceptable is presented to the calling user, and the selection of the communication service type to be actually used is accepted by the communication terminal 2 on the calling side, and the selected communication service is selected. A connection process for performing communication by type is performed to start communication. Therefore, the calling user must select a communication service type to be used from the communication service types that both the calling user and the called user currently want to use and make a call to start communication in the communication service type. This makes it possible to simply and accurately select an appropriate communication service type for communication.

That is, it is possible to reduce the trouble of determining a communication service type that can be used by the other party before making a call and the trouble of repeatedly making a call until an appropriate communication service type is found. Communication can be performed by selecting an appropriate communication service type.

The user interface operations of the communication terminal 2 on the transmitting side and the communication terminal 2 on the receiving side are basically as described above, but the transmission of the notification information and the response information is performed on the communication network 1 side. The following various modifications are possible depending on circumstances and the like.

(Modification 1) FIG. 12 is a diagram showing an example of a message sequence in the case where the communication network 1 must designate only one communication service type when making a call. Note that here, # 1,
Description will be made assuming that two types of # 2 are selected.

The communication terminal 2 on the calling side specifies one of the selected candidate services # 1 and # 2 by specifying the calling user,
Alternatively, the selection is made based on the priority set for each device or each user. Here, if the candidate service # 1 is selected, the call setting signal of the candidate service # 1 includes the other candidate services, that is, the candidate service # 1.
A transmission notification signal to which 2 is added as additional information is transmitted (S11).

Upon receiving the transmission notification signal, communication network 1
It is determined that the call is originating from the communication service type # 1, and an incoming call is made to the communication terminal 2 of the call destination (receiving side), and a call notification signal is transferred (S12).

When the call notification signal arrives, the communication terminal 2 on the receiving side receives the communication service type # 1 indicated in the call setting signal and the communication service type # 2 indicated in the additional information as candidate services. This is presented to the user, and a permitted communication service type is selected.

Here, if the communication service type # 1 to be used indicated in the call setting signal has been selected as an allowable service, the communication terminal 2 on the receiving side transmits an incoming response signal, and the user immediately The information channel is connected, and communication with communication service type # 1 can be started.

However, if the communication service type # 1 to be used indicated in the call setting signal has not been selected as the permitted service, the communication terminal 2 on the receiving side transmits the disconnection recovery signal to the additional information indicating the permitted service. Is transmitted (S13).

Upon receiving the disconnection recovery signal, the communication network 1
It is determined that the incoming call of the communication service type # 1 has been rejected by the communication terminal 2 on the receiving side. At this time, the connection of the user information channel is not performed, and the disconnection recovery signal is transmitted to the communication terminal 2 on the calling side.
(S14).

When the disconnection recovery signal arrives, the communication terminal 2 on the transmitting side stops transmitting the communication service type # 1 and presents the permitted service indicated in the additional information to the transmitting user to select it. . Here, since the only permitted service is the communication service type # 2, the service is presented and a confirmation operation is performed.

Then, the communication terminal 2 on the calling side makes a normal call with the communication service type # 2 designated as the service to be used. In other words, the communication service type # 2 is indicated as a communication service type to be used, and a transmission notification signal without additional information is transmitted (S15).

When the call notification signal arrives, the communication network 1 determines that the call is a normal call of the designated communication service type # 2, and makes an incoming call to the communication terminal 2 on the receiving side to send the call notification. The signal is transferred (S16).

When the outgoing call notification signal arrives, the communication terminal 2 on the receiving side waits for a response operation of the receiving user and transmits a normal incoming response signal (S17).

When the incoming response signal arrives, the communication network 1
Transfers the incoming response signal to the communication terminal 2 on the transmitting side (S18), and the user information channel is connected (C2).

(Modification 2) FIG. 13 shows that the communication network 1 includes a plurality of types of networks, and communication can be performed by selectively using the types of communication services provided by the respective networks. FIG. 6 is a diagram showing an example of a message sequence in the case. In this case, the communication network 1 is # 2 of #A and #B.
A description will be given assuming that the types of networks are intrinsic and the communication service type via the communication network #A is # 1 and the communication service type via the communication network #B is # 2.

The communication terminal 2 on the calling side designates one of the selected candidate services # 1 and # 2 by designating the calling user,
Alternatively, the selection is made based on the priority set for each device or each user. Here, if the candidate service # 1 is selected, the call setting signal of the candidate service # 1 includes the other candidate services, that is, the candidate service # 1.
A transmission notification signal obtained by adding 2 as additional information is transmitted to the communication network #A in which the candidate service # 1 is provided (S21).

Upon receiving the transmission notification signal, communication network #A
Makes an incoming call to the communication terminal 2 of the callee (receiving side) and transfers a call notification signal (S22).

When the call notification signal arrives, the communication terminal 2 on the receiving side transmits the communication service type # 1 corresponding to the communication network #A to which the call notification signal has been transferred and the communication service type # indicated in the additional information. 2 is presented to the called user as a candidate service, and a permitted communication service type is selected.

Here, if the communication service type # 1 corresponding to the communication network #A is selected as an allowable service, the communication terminal 2 on the receiving side transmits an incoming response signal, thereby immediately transmitting the user information channel. And communication with the communication service type # 1 via the communication network #A can be started.

However, if the communication service type # 1 corresponding to the communication network #A has not been selected as an allowable service, the communication terminal 2 on the receiving side adds a disconnection restoration signal and additional information indicating the allowable service. And send (S2
3).

When receiving the disconnection recovery signal, the communication network 1
It is determined that the incoming call of the communication service type # 1 has been rejected by the communication terminal 2 on the receiving side. At this time, the connection of the user information channel is not performed, and the disconnection recovery signal is transmitted to the communication terminal 2 on the calling side.
(S24).

When the disconnection recovery signal arrives, the communication terminal 2 on the transmitting side stops transmitting the communication service type # 1, and presents the permitted service indicated in the additional information to the transmitting user to select it. . Here, since the only permitted service is the communication service type # 2, the service is presented and a confirmation operation is performed.

[0127] Then, the communication terminal 2 on the calling side makes a normal call with the communication service type # 2 designated as the service to be used. That is, a transmission notification signal without additional information is transmitted to the communication network #B (S25).

When the call notification signal arrives, communication network #B newly calls the communication terminal 2 on the receiving side and transfers the call notification signal (S26).

Here, when the call notification signal arrives, the communication terminal 2 on the receiving side sends a normal incoming response signal to the communication network #B after waiting for a response operation of the receiving user (S27).

When this incoming response signal arrives, communication network #B
Transfers the incoming response signal to the communication terminal 2 on the transmitting side (S28), and the user information channel is connected upon this (C3).

(Third Modification) FIG. 14 shows a message sequence in a case where the communication terminal 2 on the calling side makes an inquiry to the communication terminal 2 on the called side by a signal unrelated to the call before transmitting the transmission notification signal. It is a figure showing an example.
Here, a case will be described in which two types # 1 and # 2 are selected as candidate services.

The communication terminal 2 on the calling side indicates each of the selected candidate services # 1 and # 2, and transmits an inquiry signal not related to a call (S31).

When receiving this inquiry signal, the communication network 1
Transfers the inquiry signal to the communication terminal 2 of the transmission destination (reception side) (S32).

When the inquiry signal arrives, the communication terminal 2 on the receiving side presents the candidate service indicated in the inquiry signal to the receiving user, and allows the user to select an allowable communication service type. Then, the communication terminal 2 on the receiving side transmits an inquiry response signal indicating the selected allowable service (S33). In this figure, communication service type # 2
Has been selected as an allowable service.

When receiving the inquiry response signal, the communication network 1 transfers the inquiry response signal to the communication terminal 2 on the transmitting side (S34).

When the inquiry response signal arrives, the communication terminal 2 on the transmitting side presents the permitted service indicated in the inquiry response signal to the transmitting user to select it. Here, since the only permitted service is the communication service type # 2, the service is presented and a confirmation operation is performed.

The communication terminal 2 on the calling side makes a normal call with the communication service type # 2 specified as the service to be used. That is, the communication service type # 2 is indicated as a communication service type to be used, and a transmission notification signal without additional information is transmitted (S35).

When the call notification signal arrives, the communication network 1 determines that the call is a normal call of the designated communication service type # 2, places an incoming call on the communication terminal 2 on the receiving side, and notifies the call. The signal is transferred (S36).

When the call notification signal arrives, the communication terminal 2 on the receiving side waits for a response operation of the receiving user and transmits a normal incoming response signal (S37).

When this incoming response signal arrives, the communication network 1
Transfers the incoming response signal to the communication terminal 2 on the transmitting side (S38), and the user information channel is connected upon this (C4).

The transmission of the inquiry signal and the inquiry response signal can be relatively easily realized by using a short message system or the like provided by the communication network 1.

(Fourth Modification) FIG. 15 is an example of a message sequence when the communication network 1 and the communication terminal 2 can simultaneously process a plurality of call control signals. Here,
Description will be made assuming that three types of candidate services # 1, # 2, and # 3 are selected.

The communication terminal 2 on the calling side sequentially sends outgoing call notification signals of communication service types using the selected candidate services # 1, # 2, and # 3 (S41, S41).
S42, S43). The call notification signal may be the same as the call setting signal.

When these transmission notification signals are received, communication network 1
Makes an incoming call to the communication terminal 2 of the transmission destination (reception side) and transfers each transmission notification signal (S44, S4).
5, S46).

When these transmission notification signals arrive, the communication terminal 2 on the receiving side presents the communication service types # 1, # 2, and # 3 indicated in each transmission notification signal to the receiving user as candidate services. The user is allowed to select an allowable communication service type. Then, the communication terminal 2 on the receiving side transmits an acceptance signal for the permitted service and a disconnection recovery signal for the communication service type not permitted (S4).
7, S48, S49). FIG. 15 shows a case where the communication service types # 2 and # 3 are set as the permitted services, and the communication service type # 1 is not permitted. The reception signal is set for notification of the permitted service, and is different from the incoming call response signal.

Upon receiving the reception signal and the disconnection recovery signal, the communication network 1 transmits these signals to the communication terminal 2 on the transmitting side.
(S50, S51, S52).

If the reception signal or the disconnection recovery signal arrives, the communication terminal 2 on the transmitting side stops transmitting the communication service type (here, # 1) indicated by the disconnection recovery signal, and indicates the communication service type indicated by the reception signal. The communication service type, that is, the permissible service (here, # 2, # 3) is presented to the calling user, and one of them is selected as the service to be used.

[0148] Then, the communication terminal 2 on the calling side sends a type designation signal to make a normal call with the communication service type (here, # 2) designated as the service to be used. That is, a type designation signal indicated as a communication service type using the communication service type # 2 is transmitted (S53). In addition, when a plurality of allowable services are set, the communication terminal 2 on the calling side transmits a disconnection recovery signal to abandon the transmission using the communication service type (here, # 3) not selected as the service to be used. (S54).

When these type designation signals and disconnection restoration signals arrive, the communication network 1 transfers those signals to the communication terminal 2 on the receiving side (S55, S56).

Here, when the disconnection restoration signal arrives, the communication terminal 2 on the receiving side stops the incoming call relating to the communication service type indicated by the disconnection restoration signal. Then, when the type designation signal arrives, the communication terminal 2 on the receiving side waits for a response operation of the receiving user and transmits a normal incoming response signal (S5).
7).

When this incoming response signal arrives, communication network 1
Transfers the incoming response signal to the communication terminal 2 on the transmitting side (S58), and the user information channel is connected with this (C5).

In applying this procedure, it is not always necessary to have a function capable of simultaneously connecting a plurality of user information channels, that is, a so-called multi-call function.

(Fifth Modification) FIG. 16 shows an ISDN (Inte
grated Services Digital Network) is an example of a message sequence realized by extending the standard circuit switching layer 3 call control (ITU-T Recommendation Q.931).

The originating communication terminal 2 sends out a call setup message (SETUP) to which additional information on the selected candidate service is added (S61).

The call setting message has, for example, a format as shown in FIG. In this figure, reference numeral I5
The part marked with is the ITU-T as a call setup message.
Information elements defined in Recommendation Q.931,
This is the main part of the call setup message in this example. For the first candidate service, the main part I
5 is shown in the information element of “transmission capability”. And the code I6
A portion indicated by a symbol is additional information. Additional information I6
The information shown for one candidate service included in the format is, for example, in a format as shown in FIG.

When a call setup message arrives, the communication network 1
Is a response signal to the call setup message (CALL PROC)
Is transmitted to the communication terminal 2 on the calling side (S62), and the call setting message is transferred to the communication terminal 2 on the receiving side (S63).

When the call setting message arrives, the communication terminal 2 on the receiving side sends a response signal (CALL PROC) to the call setting message (S64). Then, the communication terminal 2 on the receiving side presents the candidate service indicated in the call setting message to the receiving user, and allows the receiving user to select an allowable communication service type. And the communication terminal 2 on the receiving side
An additional information message (INFO) indicating the selected allowable service is transmitted (S65).

The additional information message here has, for example, a format as shown in FIG. In this figure, a part indicated by reference numeral I7 is an information element group defined in ITU-T Recommendation Q.931 as an additional information message, and is a main part of the additional information message in this example. The portion indicated by reference numeral I8 is the additional information. Information indicating one candidate service included in the additional information I8 has a format as shown in FIG. 20, for example.

When an additional information message arrives, the communication network 1
Transfers the additional information message to the communication terminal 2 on the transmitting side (S66).

When the additional information message arrives, the communication terminal 2 on the transmitting side presents the permitted service indicated in the additional information message to the transmitting user for selection. Then, the communication terminal 2 on the calling side transmits an additional information message (INFO) indicating the type of communication service specified as the service to be used.
Is transmitted (S67).

The additional information message has a format as shown in FIG. 21, for example. In this figure, a part indicated by reference numeral I9 is an information element group defined in ITU-T Recommendation Q.931 as an additional information message, and is a main part of the additional information message in this example. The portion indicated by reference numeral I10 is the additional information. Information indicating the used service included in the additional information I10 has a format as shown in FIG. 22, for example.

When this additional information message arrives, communication network 1 transmits the additional information message to communication terminal 2 on the receiving side.
(S68).

Here, when the additional information message arrives, the communication terminal 2 on the receiving side waits for a response operation of the receiving user,
An ALERT signal is transmitted (S69). This ALERT
When the signal arrives, the communication network 1 transfers this ALERT signal to the communication terminal 2 on the transmitting side (S70), and ALE
After transmitting the RT signal, the communication terminal 2 on the receiving side sets the CON.
An N signal is transmitted (S71). When the CONN signal arrives, the communication network 1 gives a CONN ACK signal to the communication terminal 2 on the receiving side (S72), and transfers the CONN signal to the communication terminal 2 on the transmitting side (S73). Then, the transfer of the CONN signal to the communication terminal 2 on the calling side triggers the connection of the user information channel (C6).

The present invention is not limited to the embodiments described above. For example, in the above embodiment, the communication service type is a value-added communication service type such as a TV phone, a voice call, a direct mail, and a stored mail. The present invention can be applied to the case of selecting a communication bearer type such as a communication service type provided by a plurality of different communication networks (such as PDC / PHS), and the like. The present invention can be applied to the case of selecting in combination.

Further, in the above embodiment, the communication terminal 2 on the receiving side accepts the selection designation of the permissible service by the user for each incoming call. For example, the control unit 21 receives in advance the designation of the number of allowable services set by the user by the control unit 21 and registers the designation in the memory unit 22, for example, and sets the setting in the order of the priority from the candidate services for each incoming call For example, the control unit 21 may select a number of communication service types and automatically set them as allowable services. This eliminates the need for the user to select an allowable service every time, thereby reducing the burden on the user. It should be noted that the automatically set permissible service may be automatically notified to the calling side without receiving the user's finalization designation, or the notification to the calling side may be made after receiving the user's finalization designation. It may be performed.

In addition, in correspondence with the communication terminal 2 as a partner, designation of a communication service type to be an allowable service at the time of communication with the communication terminal 2 by the user is performed by the control unit 2.
1, the specified contents are registered in, for example, the memory unit 22, and the communication service type specified for the communication terminal 2 on the calling side from among the candidate services at the time of an incoming call is automatically set as an allowable service by the control unit 21, for example. You may make it set. This eliminates the need for the user to select an allowable service every time, thereby reducing the burden on the user. It should be noted that the automatically set permissible service may be automatically notified to the calling side without receiving the user's finalization designation, or the notification to the calling side may be made after receiving the user's finalization designation. It may be performed. The registration of the designated content may be performed in association with the memory dial.

It is not always necessary for the communication terminal 2 to accept the operation of selecting the communication service type by operating the cursor key 25b and the select key 25c. The index number is displayed on the screen at the same time as the item on the screen.
The input of the index number by 5a may be accepted.

In the above-described embodiment, the originating communication terminal 2 selects the service to be used from the allowed services by the calling user. However, the communication terminal 2 based on the condition information such as the priority set in advance. May be automatically selected from among the services to be used, and a calling process for performing communication using the used service may be automatically performed.

In the above-described embodiment, even if only one allowable service is set in the communication terminal 2 on the calling side, the permitted service is set as the service to be used according to the designation designation by the user on the calling side. But
When there is only one permitted service, the permitted service may be automatically set as a used service, and a calling process for performing communication using the used service may be automatically performed.

In the above embodiment, the communication terminal 2 has both the calling function and the receiving function.
A communication terminal for calling only and a communication terminal for receiving only may be connected to the communication network 1 to form a communication system, or a communication terminal having both a calling function and a receiving function and a communication terminal for calling only Alternatively, the communication system may be a communication system in which communication terminals dedicated to incoming calls are mixed and connected to the communication network 1.

In addition, various modifications can be made without departing from the gist of the present invention.

[0172]

According to the present invention, a plurality of communication terminals, each of which is a first communication terminal having a calling function or a second communication terminal having a receiving function, are connected to a predetermined communication network. Among the plurality of communication service types provided in the communication network between the communication terminals through the communication network.
A candidate service designation receiving means, provided in the first communication terminal, for receiving designation of at least one communication service type desired by the user, The notification information that is provided in the first communication terminal and indicates the communication service type received by the candidate service designation receiving unit,
Notification information sending means for sending to the communication network after designating a destination; and providing the notification information provided in the communication network and sent by the notification information sending means to a communication terminal designated as a destination. Notification information transfer means for transferring to the second communication terminal, a communication service type of a communication service type permitted to be used by a user among communication service types indicated in the notification information transferred by the notification information transfer means. Accepting service designation accepting means for accepting designation;
Response information sending means provided in the communication terminal for sending response information indicating the type of communication service received by the permitted service designation receiving means to the communication network; and the response information sending means provided in the communication network. Response information transfer means for transferring the response information sent by the first communication terminal to the second communication terminal to the first communication terminal from which the notification information has been transferred by the notification information transfer means; and
A communication terminal provided in the communication terminal, for starting communication with the destination second communication terminal in a predetermined communication service type among the communication service types indicated in the response information transferred by the response information transfer unit; And a communication start means for performing the processing of (1), so that a communication service type permitted to be used by the user on the receiving side is confirmed before starting communication, and actual communication is performed in any of the permitted communication service types. In other words, communication is performed in an appropriate communication service type according to the circumstances of the receiving side, and the receiving side only needs to select an allowable service within the range of the candidate services selected by the calling side. In this case, the burden on the user can be minimized, and as a result, a communication service type that is convenient for both the calling side and the called side can be easily and reliably selected. It is possible.

Further, according to the present invention, the allowable service designation accepting means of the second communication terminal is provided with a priority for accepting designation of an allowance priority regarding at least a part of communication service types usable by the communication terminal. Designation receiving means, priority storage means for storing the priority received by the priority designation receiving means, and notification information transferred by the notification information transfer means provided in the communication network. Out of the communication service types, the priority stored in the priority storage unit is higher than the predetermined number of communication service types, and is configured as an allowable service automatic selection unit that automatically selects a communication service type as an allowable communication service type. This eliminates the need for the user on the receiving side to select the allowable service from the candidate services each time a call arrives, further simplifying the operation. It becomes possible.

Further, according to the present invention, the permissible service designation accepting means of the second communication terminal is provided with a communication service type for any communication terminal which is permitted to use for communication with the communication terminal. A permissible service accepting unit for each terminal that accepts the designation; an permissible service storing unit that stores the communication service type received by the permissible service receiving unit for each terminal in association with the target communication terminal; Of the communication service types indicated in the notification information transferred by the notification information transfer unit, the communication service type stored in the permissible service storage unit in association with the communication terminal of the transmission source of the notification information And automatic selection means for automatically selecting a communication service type that allows only those that match The terminating user work selection of allowable service from-bis is no longer necessary to perform every incoming, it is possible to achieve simplification of the further operations.

[Brief description of the drawings]

FIG. 1 is a block diagram showing a main configuration of a communication system according to an embodiment of the present invention.

FIG. 2 is a flowchart (part 1) illustrating a processing procedure in an outgoing call processing by a control unit 21 in FIG. 1;

FIG. 3 is a flowchart (part 2) illustrating a processing procedure in an outgoing call process by the control unit 21 in FIG. 1;

FIG. 4 is a communication terminal 2 on the transmitting side and a communication terminal 2 on the receiving side
FIG. 6 is a diagram showing a display example in each of FIG.

FIG. 5 is a diagram showing a message configuration of a call notification signal when a candidate service is set.

FIG. 6 is a diagram showing a message configuration of a call notification signal when a candidate service is not set.

FIG. 7 is a diagram showing a message sequence in the main embodiment of the present invention.

8 is a flowchart (part 1) illustrating a processing procedure in an incoming call process by the control unit 21 in FIG.

FIG. 9 is a flowchart (part 2) illustrating a processing procedure in an incoming call process by the control unit 21 in FIG. 1;

FIG. 10 is a diagram showing a message configuration of a notification response signal.

FIG. 11 is a diagram showing a message configuration of a type designation signal.

FIG. 12 is a diagram showing a message sequence in the first modification of the present invention.

FIG. 13 is a view showing a message sequence in a second modification of the present invention.

FIG. 14 is a diagram showing a message sequence in a third modification of the present invention.

FIG. 15 is a diagram showing a message sequence in a fourth modification of the present invention.

FIG. 16 is a diagram showing a message sequence in a fifth modification of the present invention.

FIG. 17 is a diagram showing a message format of a call setup message used in a fifth modification of the present invention.

FIG. 18 is a diagram showing a format of information indicating one candidate service included in additional information I6 in the call setting message shown in FIG. 17;

FIG. 19 is a diagram showing a message format of an additional information message used as a notification response signal in a fifth modified example of the present invention.

FIG. 20 is a diagram showing a format of information indicating one allowable service included in additional information I8 in the additional information message shown in FIG. 18;

FIG. 21 is a diagram showing a message format of an additional information message used as a type designation signal in a fifth modification of the present invention.

FIG. 22 is a diagram showing a format of information indicating a used service included in additional information I9 in the additional information message shown in FIG. 21.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Communication network 1a ... Notification information transfer function 1b ... Response information transfer function 2 ... Communication terminal 21 ... Control part 21a ... Candidate service designation receiving means 21b ... Notification information sending means 21c ... Permissible service designation receiving means 21d ... Response information sending means 21e ... Communication start means 22 ... Memory unit 23 ... Communication unit 24 ... Line interface (line I / F) 25 ... Operation unit 26 ... Display unit 27 ... Transmission / reception unit 28 ... Camera unit 29 ... Incoming notification unit 3 ... Message storage system

──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. ⁷ Identification symbol FI theme coat ゛ (reference) H04B 7/26 109K H04L 13/00 305C H04Q 7/04 DF term (reference) 5K024 AA01 AA61 BB00 CC05 CC09 CC12 DD01 DD02 DD03 DD04 EE00 FF03 GG00 GG01 GG03 5K034 AA17 DD03 HH63 KK21 KK28 5K051 AA01 AA08 CC04 DD07 DD13 FF04 FF06 FF11 FF12 FF16 FF21 DD25 DD15 KK04 KK05 KK20 LL03 MM04 MM06 NN01 NN18 NN21 PP01 PP03 PP07 QQ07 QQ09 RR11 RR27 SS07 TT03 TT04

Claims (9)

[Claims] A plurality of communication terminals, each of which is a first communication terminal having an outgoing function or a second communication terminal having an incoming call function, are connected to a predetermined communication network. A communication system that enables communication by selectively using one of a plurality of communication service types provided by the communication network via the communication network; provided in the first communication terminal; Candidate service designation accepting means for accepting designation of at least one communication service type desired by the user; and notification information provided in the first communication terminal and indicating the communication service type accepted by the candidate service designation accepting means Notification information sending means for sending to the communication network after designating a destination; and providing the notification information provided in the communication network and sent by the notification information sending means. Notification information transfer means for transferring to a communication terminal designated as a call destination; provided in the second communication terminal, of the communication service types indicated in the notification information transferred by the notification information transfer means An allowed service designation accepting unit that accepts designation of a communication service type that is permitted to be used by a user; and a response information that is provided in the second communication terminal and indicates the communication service type accepted by the allowed service designation accepting unit. Response information transmitting means for transmitting to the network; and the notification information provided in the communication network, wherein the response information transmitted by the response information transmitting means is transferred to the second communication terminal by the notification information transferring means. Response information transfer means for transferring to the first communication terminal which is the transmission source of the communication information; Communication start means for performing a process for starting communication with the destination second communication terminal in a predetermined communication service type among the communication service types indicated in the transmitted response information. A communication system characterized by the above-mentioned. 2. A communication terminal comprising a communication terminal functioning as a second communication terminal according to claim 1 and a communication network, the communication terminal having a transmission function, wherein at least one communication terminal desired by a user to use is provided. Candidate service designation receiving means for accepting designation of a communication service type; and notification information sending for sending notification information indicating the communication service type accepted by the service designation receiving means to the communication network after designating a destination. Means, and the second communication terminal of the transmission destination in a predetermined communication service type among the communication service types indicated in the response information transferred by the response information transfer means provided in the second communication terminal; A communication start means for performing a process for starting communication of the communication terminal. 3. The communication terminal according to claim 2, wherein the communication service types received by the candidate service designation receiving means are a plurality of value-added communication service types provided in the communication network. 4. The communication terminal according to claim 2, wherein the communication service types accepted by the candidate service designation accepting means are a plurality of communication bearer types provided in the communication network. 5. The communication service type according to claim 2, wherein the communication service types accepted by the candidate service designation accepting means are a plurality of communication service types provided in the communication network, each using a different transmission path. Communication terminal. 6. A communication terminal comprising a communication terminal functioning as a first communication terminal according to claim 1 and a communication network, the communication terminal having a call receiving function, wherein the notification provided in the communication network is provided. An allowed service designation accepting unit for accepting a designation of a communication service type permitted to be used by the user among the communication service types indicated in the notification information transferred by the information transfer unit; A communication terminal comprising: response information sending means for sending response information indicating a communication service type to the communication network. 7. The priority service accepting means, comprising: a priority designation accepting means for accepting designation of an allowance priority regarding at least a part of communication service types usable by the communication terminal; Priority storage means for storing the received priority; and priority storage from among the communication service types indicated in the notification information transferred by the notification information transfer means provided in the communication network. 7. The communication terminal according to claim 6, further comprising: an automatic service selection means for automatically selecting a predetermined number of communication service types having a higher priority stored in the means as an allowable communication service type. 8. The permissible service designation accepting means for accepting designation of a communication service type which is permitted to be used for communication with a communication terminal with respect to an arbitrary communication terminal; Permissible service storage means for storing the communication service type received by the per-terminal permissible service reception means in association with the communication terminal targeted; and From among the communication service types indicated in the notification information, a communication service type that allows only those that match the communication service type stored in the permissible service storage unit in association with the communication terminal from which the notification information is transmitted is set as the communication service type. 7. The communication terminal according to claim 6, further comprising an allowable service automatic selection unit for automatically selecting. 9. Communication between a plurality of communication terminals respectively functioning as the first communication terminal and the second communication terminal according to claim 1 by selectively using one of a plurality of communication service types. A communication network which enables the notification information transmitted by the notification information transmitting means provided in the first communication terminal to a communication terminal designated as a transmission destination; (2) The response information transmitted by the response information transmitting means provided in the communication terminal is transferred to the second communication terminal by the notification information transfer means and transmitted to the first communication terminal of the notification information. A communication network comprising: response information transfer means for transferring.