JP2685059B2 - Pager calling method - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of use] The present invention uses a user-to-user information transmission function of a telephone device connected to an ISDN network to provide a caller with an absent notice in text. The present invention relates to a pager calling method for calling a called party by a pager.

[Prior Art] When a called party is absent and the called party is to be called by a pager, conventionally, the calling party newly knows the absence of the called party by making a call and then re-pockets. This is done by calling the Bell station and dialing the pager number of the called party.

[Problems to be Solved by the Invention] In the above conventional method, the caller needs to perform two calling operations (calling operation to the called party and calling operation to the pager station), and If the caller does not know the pager number of the called party, the pager cannot ring.

Also, the calling party generally does not know whether the called party carries a pager. Therefore, in order to make a pager call for an incoming call while absent, pager call guidance is provided by a telephone device having an absence guide function such as an answering machine. In such a case, since the telephone device automatically responds to the incoming call, the caller who is going to make a pager call must bear the call charge twice, and the pager call If you do not do this, you must pay the one-time call charge. Moreover, since the telephone device is a device connected to the analog network, it is necessary to close the communication line even for the absence guidance, which results in a long communication time and a high communication cost.
In particular, since the callee side automatically responds, the caller side is forced to bear the burden of double call charges even though the purpose of the call has not been achieved, and the above communication cost is extremely high. This is a big problem.

The present invention proposes to solve the above-mentioned problems, and even if the caller is informed of absence, the caller does not incur an excessive communication cost, and the pocket is set according to the intention of the caller. When making a pager call, a pager call method is provided in which the caller side does not need to call the pager station and the callee side bears the communication cost for pager call. This is an issue.

[Means for Solving the Problems] In recent years, the digitization technology of the telephone line network has entered the stage of practical application, and so-called ISDN network has been constructed. The present invention solves the above problems by using this ISDN network, and can be transmitted together with a call control message transmitted and received via a D channel for line control between telephone devices connected to the ISDN network. Using the information between the users, the telephone device that received the call informs the caller of the absence of the text, and when the telephone device of the called side is in the pager call mode, the telephone device of the called side will call the pager. The pager is automatically called and the pager number of the absentee at the pager station and the telephone number of the caller (caller
ID) etc. to the pager station to make a pager call, and when it is up to the caller to decide whether to make a pager call, the pager call instruction information given by the caller is given above. The information is sent to the telephone device on the receiving side according to the information between users.

[Operation] The absence message is sent from the telephone device to the caller (originating telephone device) when the called telephone device is not responding (call channel is not formed), and is called when necessary. The pager call instruction information sent by the person is also sent to the telephone device when the called telephone device has not answered.
Moreover, since the pager call is made by the called telephone device, the caller is not charged with an excessive communication charge, and the caller need not remember the pager number of the absentee. And there is no hesitation in determining whether an absentee is carrying a pager. Further, the decision as to whether or not to perform pager call can be made on the absentee side (the telephone device on the receiving side) or on the calling side (the telephone device on the calling side).

[Practical Examples] The drawings are all for explaining the embodiments of the present invention. FIG. 1 is a block diagram of a telephone device, and FIGS. 2 and 3 are ISDN.
FIG. 3 is an operation diagram collectively showing a sequence of exchanging information between a network and a telephone device and a processing flow in the telephone device.

 Each part of the telephone device shown in FIG. 1 will be described.

Reference numeral 1 is an S interface which is a connection device with an ISDN network, and separates information transmitted from the ISDN network by its B channel and D channel, or transmits information to the ISDN network by the B channel or It operates to fit the D channel.

Reference numeral 2 denotes a central control unit (hereinafter, referred to as CPU) that collectively controls the telephone devices including the absence control message sending control and the pager station call control, and is usually composed mainly of a microprocessor. .

Reference numeral 3 is a communication circuit network, and 4 is a handset, which are provided for voice communication, respectively, and are not directly related to the present invention.

Reference numeral 5 is a mode setting operation unit for setting the operation mode of the telephone device including the absence mode and the pager calling mode according to the present invention, and 6 is a pager call for the absentee when the absence message is received. A pager call operation unit, 7 is an installation data memory for storing data necessary for operating the telephone device including a pager station number according to the present invention, and 8 is for registering a pager number carried by an absentee. Pager number memory, 9 is an absence message memory for registering an absence message, and 10 is a message display unit for visually displaying an absence message sent from the telephone device on the receiving side,
Reference numeral 11 is a calling ID memory for storing the telephone number (calling ID) of the caller included in the call control message sent when a call is received, and 12 is a dial. The absent message memory 9 has an area for storing at least two messages, and stores a message for simply indicating that the user is absent and a message for notifying that the user can page the pager together with the absent message.

 Next, the operation will be described with reference to FIGS.

As shown in FIGS. 2 and 3, the ISDN network includes terminal A,
The terminal B and the pager station are combined, and the terminal A and the terminal B are the telephone devices shown in FIG. Also, the pager station is a station that is currently connected to an analog network, and actually, a relay that controls mutual entry between the ISDN network and the analog network is provided between the ISDN network and the pager station. Although a station exists, the relay station is omitted in the description of the embodiment for simplicity.

In the above network configuration, it is assumed that terminal A is the calling terminal and terminal B is the receiving terminal. That is, in response to an incoming call from the terminal A, the terminal B sends an absence guide message to the terminal A, and if necessary, the terminal B accesses the pager station to page the absentee. .

When the user of the terminal B is absent, the user registers an absence guide message in the terminal B and sets the absence mode and pager call mode if necessary. That is, in FIG. 1, when the absence guide message is not registered, first the mode setting operation unit 5 is operated to enter the absence guide message registration mode, and the absence guide message is input by operating the message input unit (not shown). Then,
The CPU 2 reads this and stores it in the absence message memory 9, and the registration of the absence message is completed. In the absence message memory 9, as described above, a message for simply indicating that the user is absent (this message
And ) And a message that guides the user to be absent and to be able to page the pager (this message is referred to as an absence message B).

Next, the mode setting operation unit 5 is operated again to bring the telephone device into the pager number registration mode, and the pager number carried by the user who is absent is registered. That is, when the pager number is entered by operating the dial 12, the CPU 2 reads this and reads the pager number memory 8
And the pager number registration is completed. It should be noted that this registration operation is unnecessary when only the absence guide is performed.

Next, the mode setting operation unit 5 is operated to set the telephone device to the absence mode or the pager calling mode. If the pager number memory 8 stores the pager number when the absence mode is set, and if the pager number is stored, the absence pager calling mode is set. The bell call mode can be set without a separate operation. However, in this case, it is necessary to delete the registration of the pager number each time the absence pager calling mode is canceled (this deletion can be performed automatically). The inconvenience of having to register the bell number remains. Unless otherwise specified, the following description will be made in the operation in the absent pager calling mode.

When the terminal A makes a call to the terminal B, a call control message (call setting message) for call setting is sent from the terminal A to the ISDN network by the D channel, and the IS
In response to this, the DN network performs control for call setup between terminal A and terminal B, and at the same time, terminal A sends a call control message (call setup acceptance message) for confirming that the call has been accepted. , The above-mentioned call setup message is sent to the terminal B through the D channel.

When the above-mentioned call setup message is sent by the D channel of the ISDN network, the terminal B on the receiving side reads it into the above-mentioned call setup message CPU2 through the S interface 1, whereby the CPU2 judges the occurrence of the incoming call and the above-mentioned call. The calling ID (telephone number of the calling terminal A) sent by the setting message is stored in the calling ID memory 11, and then it is determined whether the terminal B is in the absence mode. When not in the absence mode, the CPU 2 performs a general incoming call process, that is, a process for making a voice call with the terminal A through the B channel (this process is not directly related to the present invention, so will not be described in detail). In this case, since the terminal B is set to the unattended mode (the unattended pager calling mode is also a kind of unattended mode), the CPU 2 next determines whether or not the unattended mode is the pager calling mode. Judgment is made based on whether or not the pager number memory 8 is registered (if the pager calling mode can be set independently of the absence mode, it is not necessary to judge whether or not the pager number is registered. Absent.).

When not in the pager calling mode, the CPU 2 can read the absent message A from the absent message memory 9 and send it to the ISDN network at the same time as the call control message (release completion message) sent to the ISDN network when the line is released. The user-to-user information determined to include the above-mentioned absence guide message A is created.

When in the pager call mode, the CPU 2 determines whether pager call instruction information, which will be described later, is included in the inter-user information sent from the terminal A,
In this case, since the pager calling instruction information is not included, the absent message B is read from the absent message memory 9 next, and the user-to-user information including the release completion message and the absent message B as described above. To create.

Next, CPU2 performs line release control for the ISDN network to
User-to-user information including the release completion message and the absence message A or B is sent to the DN network via the S interface 1 through the D channel.

Upon receiving the release completion message and the inter-user information from the terminal B, the ISDN network sends a call control message (disconnection message) indicating the line disconnection to the calling terminal A through the D channel, and the inter-user information from the terminal B is transferred to the above-mentioned user control information. It is added to the disconnection message and transferred to the terminal A.

At terminal A, the disconnection message and the information between users are sent to S
It is read into the CPU 2 via the interface 1, and the CPU 2 extracts the absence guide message A or B from the user information and displays it on the message display unit 10. At the same time, CP
U2 performs line release control, and two types of call control messages (release message, release message, through the D channel with the ISDN network).
The release completion message) is exchanged, and the ISDN network uses terminal A.
Then, the D channel connection between the terminal and the terminal B is released. The processing in this mesh ladder is the normal processing when the line is released in the ISDN network.

After displaying the absence message A or B on the message display unit 10, the CPU 2 monitors whether or not the pager calling operation unit 6 has been operated and whether or not the pager calling operation unit 6 has been on-hook. End (when the absence guidance message A is displayed, the caller of the terminal A knows that the pager cannot be called, so naturally the call goes on-hook, and the processing of the terminal A ends.) When the pager call operation unit 6 is operated on the terminal A,
CPU2 reads this and creates user-to-user information including call setup message and pager call instruction information,
Call again to the ISDN network. At this time, the called ID (telephone number of the terminal B) may be the number dialed at the time of the first call as it is, and the operation by the dial 12 is not necessary again.

By this calling process, the ISDN network again controls the call setting between the terminal A and the terminal B, and the call setting message and the information between users are sent to the terminal B.

In the terminal B, upon receipt of the call setting message, the occurrence of an incoming call is known in the same manner as described above, and the CPU 2 causes the calling ID memory 11
The caller ID is stored in (the caller ID from the terminal A is the same as that at the time of the first incoming call, so the same number is stored). It is determined whether or not it is the bell calling mode. In this case,
Since it is both in the absence mode and in the pager calling mode, the CPU 2 next judges whether or not the inter-user information sent from the terminal A includes the pager calling instruction information. Included, so CP
U2 handles pager station calls.

That is, the CPU 2 reads out the telephone number of the pager station from the installation data memory 7, creates a call setup message with this as the destination ID, puts it in the off-hook state, and sends the call setup message to the ISDN network. Upon receiving the call setup message, the ISDN network receives the call setup message from the terminal A and the pager station (actually as an analog network).
The same applies to the case of a relay station with an ISDN network, and the pager station below. ) To control the call setup between
Call the pager station. The pager station automatically responds to the incoming call from the terminal B, and a call control message (response message) indicating that the pager station has responded is sent to the ISDN network, whereby the ISDN network sends the response message to the terminal. Transfer to B via the D channel, and set the B channel between the pager station and terminal B. At this time, a call control message (response confirmation message) for confirming the response from the ISDN network to the pager station.
Will be sent.

When the pager station and the terminal B are connected as described above, the pager station sends a voice operation guide message for calling the pager to the terminal B through the B channel, and then the pager. Information (pager number, other information) for calling the bell is ready to be received. Therefore, at terminal B,
After taking the timing of the time when the above guidance message is sent (at the start of the timing, it can be judged by receiving the response message transferred from the ISDN network).
U2 reads the pager number from pager number memory 8 and the caller ID (in this case, the telephone number of terminal A) from caller ID memory 11 and uses this as the DTMF signal (dial signal used in the analog network). Convert and call network 3
And sent to the pager station via the B channel via the S interface 1 and then from the ISDN network to the BT tone (a signal of the same form as the busy tone sent when the other party is on-hook, the same applies below). To receive or not.

As described above, when necessary information such as the pager number and the calling ID is received, the pager station performs pager call control. That is, a pager carried by an absentee is called by a wireless channel with well-known control,
Send necessary information such as calling ID to the pager. Thereby, an absentee carrying a pager can know the incoming call to the terminal B and the caller of the incoming call.

If the pager station can be directly accommodated in the ISDN network at the transmission step to the pager station, all pager numbers and calling IDs will be sent from terminal B to the pager station together with the call control message. Since it is possible to send by D channel by including in the possible information between users, it is not necessary to set the B channel between the pager station and the terminal B, and naturally, the pager number and calling ID etc. The conversion to the DTMF signal is also unnecessary.

At the pager station, when the pager calling control is completed, the call ending process is performed. As a result, the disconnection message, the release message, and the release completion message are exchanged between the pager station and the ISDN network, and all the lines between the pager station and the ISDN network are released.
The disconnection message is sent from the DN network to the terminal B through the D channel. This disconnection message is read by the CPU 2 as a BT sound via the S interface 1 in the terminal B, and the CPU 2 controls the line release by receiving the BT sound. As a result, the release message and the release completion message are exchanged between the terminal B and the ISDN network, and a series of control processing ends.

In the above embodiment, whether or not the pager call is made can be selected on the calling terminal (terminal A) side. However, on the called side terminal (terminal B), all incoming calls are accepted. You can also make a pager call. In this case, the processing at the calling terminal need only display the absence message, the second call setting control from the calling terminal is not necessary, and the processing at the called terminal does not require the pocket. Bell call mode judgment is "Y"
If it is, the absence message B is sent,
At the same time, the pager station may be called.

[Effects of the Invention] As described in detail above, the present invention utilizes the user-to-user information that can be transmitted together with the call control message from the called terminal in the absent pager calling mode to the calling terminal to provide the absence guide. In addition, the above-mentioned call reception terminal makes a call for pager call, the absence guidance is instantaneously given at the line release control level, and the pager call instruction to the call reception terminal is also made. The communication time is extremely short because it is carried out instantly on the setting control level, and the communication charges to the pager station become a burden on the receiving side, so that the caller is burdened with excessive communication charges more than necessary. In addition, the caller does not need to know the absentee pager number and whether or not the absentee pager is carried. The present invention has a very remarkable effect such as the ability to call a bell.

[Brief description of the drawings]

The drawings illustrate embodiments of the present invention, and FIG.
The figure is a block diagram of a telephone device, and FIGS. 2 and 3 are operation diagrams. (Main symbols) 1 ... S interface, 2 ... CPU 5 ... Mode setting operation unit 6 ... Pager call operation unit 7 ... Installation data memory 8 ... Pager number memory 9 ... Absent message memory

Claims (2)

(57) [Claims] 1. A telephone device connected to an ISDN network, the telephone device including a mode setting means for setting an absent mode and a pager number for setting a pager calling mode and storing a pager number. It has a storage means and a pager station telephone number storage means for storing the telephone number of the pager station, the mode setting means sets the absence mode, and the pager number storage means stores the pager number. When there is an incoming call to the telephone device,
The telephone device controls the line release without closing the B channel of the ISDN network with the caller, and the inter-user information that can be transmitted together with the call control message sent to the caller by the line release control is transmitted. The caller is informed of the absence, including the absence message, and the call is set up with the pager station based on the telephone number stored in the pager station telephone number storage means to call the pager. The pager calling method. 2. The telephone device according to claim 1, wherein the telephone device further has a pager calling operation means, and a caller who has received the absent information operates the pager calling operation means on the calling side telephone device. When operated, the call is sent again to the telephone device on the called side, and the pager call instruction information is included in the user-to-user information that can be transmitted together with the call control message sent from the calling side to the called side at the time of calling. , A pager call system in which the called telephone device detects the pager call instruction information and sets up a call with the pager station.