JP2004153544A - Telephone exchange system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a telephone exchange system which can rationally process a line connection request from an external browser phone to an extension even if a person in charge of the extension is absent. <P>SOLUTION: The telephone exchange system is provided with a communication information processing part 30 transmitting responsible person schedule information and extension guide information to the browser phone through communication with the browser phone 1 accessed via a packet exchange network 2c and receiving an extension connection request from the browser phone with respect to the selected extension, a calling source specification part 41 specifying at least a telephone number of the browser phone and a line connection control part 62 establishing a communication link between the browser phone and the extension by call-back through a line exchange network 2f based on extension connection information including the extension and a telephone number of the browser phone, which is generated by a line connection management part 42 based on the extension connection request. <P>COPYRIGHT: (C)2004,JPO

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a telephone exchange system that rationally exchanges a line between a browser phone as an external line and an extension telephone installed in a private telephone network.
[0002]
[Prior art]
In this application, the term “browserphone” is used in a broad sense, and is not limited to a mobile phone that can use a mobile IP connection service such as “i-mode” (registered trademark), but also a PHS or a telephone that can use an IP connection service. It naturally includes a PDA with a function, a fixed telephone employing "L. mode" (registered trademark), etc., and can perform communication / communication via both a packet-switched communication network and a circuit-switched communication network. Means a telephone equipped with a display for displaying the displayed data.
[0003]
In a situation where such browser phones are spreading rapidly and almost everybody owns a browser phone, an extension telephone of a private network built at each business office and a browser phone owned by external customers and business employees There is a demand for a switching system for performing circuit switching between the telephone and the extension phone, in particular, by a simple operation, and some systems have been proposed to respond to this request (for example, see Patent Document 1). .
[0004]
In this known switching system, when a mobile phone that can use two methods, packet switching communication and circuit switching communication, transmits an extension transmission request, which is a request for making a call to a desired extension telephone, to the private branch exchange by packet communication, the private branch exchange The callback control means on the side performs a calling operation to the mobile phone using the telephone number of the mobile phone stored in the extension calling request, and when the mobile phone answers, the telephone of the extension phone stored in the extension calling request. By making a call to the extension telephone using the number, a line connection between the mobile telephone and the extension telephone is established. At this time, it is also possible to perform the calling operation for the extension telephone before the calling operation for the mobile telephone.
[0005]
In this known telephone exchange system, when making a line connection from a mobile phone to an extension phone, a call is sent from the exchange to the mobile phone, so that the charge for communication costs can be made to the exchange side. In this case, an advantageous advantage can be obtained depending on the usage mode, in that communication costs due to the circuit switching communication are not generated. However, even if the person in charge of the extension phone is not available and cannot make a call, a call back to the mobile phone occurs when another person takes off the handset of the extension phone, and a call charge is incurred. . In addition, even if the caller using the mobile phone is not the other party who wants to talk to the business establishment constructing the extension telephone network, a callback occurs and a call charge is similarly generated. This is not just a matter of call charges, but the loss of human expenses associated with dealing with unnecessary calls cannot be ignored.
[0006]
In general, because there are many reasons why calls cannot be answered due to the absence of the person in charge of the called telephone, the telephone is equipped with an answering machine function, and furthermore, an auto dial unit that transmits the received telephone to the transfer destination telephone number And a caller identification section for identifying the caller and permitting the transfer to the auto dial section, and storing the transfer destination telephone number for each day of the week and time set by the person in charge of the telephone according to the schedule, and setting the time. In some cases, the automatic dial section is provided with a schedule section for giving a transfer destination telephone number in accordance with the above-mentioned problem, so that the problem of being unable to route a call due to the absence of a person in charge is solved. (For example, see Patent Document 2).
[0007]
However, it is difficult in terms of cost to provide such an answering machine corresponding to a schedule in all extension telephones. In addition, even if a private extension network is constructed using such a schedule-based telephone with an answering machine, the caller's schedule is not transmitted at all to the caller's schedule, and the telephone number of the place automatically adjusted to the schedule Is transferred to the server, causing a problem such as interrupting a telephone call during an important meeting.
[0008]
[Patent Document 1]
JP-A-2000-125326 (paragraphs 45 to 46, paragraphs 143 to 152, FIG. 25)
[0009]
[Patent Document 2]
JP 2001-061013 A (paragraphs 14 to 28, FIGS. 1 and 4)
[0010]
[Problems to be solved by the invention]
In view of the above situation, an object of the present invention is to eliminate the above-mentioned drawbacks and to reasonably process a line connection request from an external browser phone to an extension phone even if a person in charge of the extension phone is absent. It is to provide a telephone exchange system that can do.
[0011]
[Means for Solving the Problems]
In order to solve the above-mentioned problem, in the telephone switching system according to the present invention, the contact person's schedule information and the extension guidance information are transmitted to the browser phone through communication with the browser phone accessed via the packet switching network and are selected. A communication information processing unit that receives an extension phone connection request from the browser phone for an extension phone, a caller identification unit that identifies at least a telephone number of the browser phone, and the extension that is selected based on the extension phone connection request A line connection management unit for generating extension telephone connection information including a telephone number of the telephone and a telephone number of the browser phone, and calling back to the browser phone via a circuit switching network based on the extension telephone connection information. Line connection system that establishes a communication link between the browser phone and the corresponding extension phone And a part is provided.
[0012]
According to this configuration, when the line is connected from the external browser phone to the extension phone through the packet switching network, first, the scheduler information and the extension guidance information are transmitted to the browser phone that is the transmission source, On the browser phone side, it is possible to know the schedule (information about where you are) of the other party you want to talk to and the extension phone (extension number) that leads to it. Then, the browser phone sends an extension phone connection request as necessary, taking into account the schedule of the party to be called, and the telephone switching system calls back to the browser phone through the circuit switching network and communicates with the external browser phone. Establish a communication link with the extension telephone on the premises. Therefore, even with a mobile phone type browser phone, it is not only possible to make a call with an extension phone without using a special direct-in function, but also to read the convenience of the other party from the schedule information and then make an extension phone call. Since the connection is requested, even if the other party is not at his / her own seat, it is possible to chase the desired other party within an inconvenient range and make a call via an appropriate extension telephone.
[0013]
Based on the staff schedule information and extension guidance information transmitted from the communication information processing unit constituting the telephone exchange system, the browser phone can talk with the other party in consideration of the schedule of the other party who wants to talk. When the extension telephone is selected and operated, if the extension guidance information is linked to the person in charge schedule information as described in claim 2 as a further feature of the telephone exchange system according to the present invention. For example, in the schedule information, the extension phone number of the seat can be linked to the communication destination when the communication partner is present at his / her own seat, and the extension number of the conference room can be linked to the conference room when he / she is in the conference room. The extension connection request can be made based only on the request.
[0014]
As another feature of the telephone exchange system according to the present invention, as described in claim 3, a call with the browser phone is made to a corresponding extension phone based on the extension phone connection information. A call confirmation unit for confirming whether or not the call is permitted. When the call confirmation unit confirms the permission of the call with the browser phone, the line connection control unit establishes a communication link between the browser phone and the extension phone. There is something to do. In this configuration, when a line connection request from an external browser phone to an extension telephone through a packet switching network is requested by a person in charge of the extension telephone, the browser phone calls back to the browser phone through the circuit switching network only. To establish a communication link between the external browser phone and the extension phone on the premises. Therefore, the browser phone requesting the line connection is specified through its telephone number, etc., and the call is established by first calling back to the browser phone after obtaining the call request confirmation from the person in charge of the extension phone. The inconvenience of relaying a call is avoided.
[0015]
When specifying the browser phone as the transmission source, the use of the user name or the institution to which the user belongs is convenient for determining whether or not the call is permitted. Therefore, as described in claim 4 of the claims, It is proposed that the caller specifying unit has a function of specifying user information of the browser phone as a caller, and the extension telephone connection information includes the user information.
[0016]
In any case, the call confirming unit needs to confirm with the person in charge of the extension telephone whether or not to accept the call request from the browser phone. At that time, it is described in claim 5 of the claims. As described above, by adopting a configuration in which the user name, which is the user information, is transmitted to the extension telephone by voice, that is, by simply adding a voice guidance device to the conventional extension telephone system, the corresponding information is smoothly applied. It is possible to confirm with the person in charge of the extension telephone whether or not the call is permitted.
[0017]
In still another characteristic configuration of the telephone exchange system according to the present invention, as described in claim 6, a call with the browser phone is not permitted with a person in charge of the extension telephone. In such a case, the communication information processing unit is configured to notify the browser phone of the call failure via the packet switching network. As a result, even if the person who needs to talk to the browser phone with the extension is absent or urgently unable to make a call, by giving a call disable notification, the discomfort of the destination due to no answer is avoided. Is done. Such a call-disabled notification may be made through a callback to a browser phone using a circuit-switched network. However, if the notification is made using a packet-switched network, for example, by e-mail, communication costs can be saved. Can contribute.
[0018]
Other features and advantages according to the present invention will become apparent from the following description of embodiments with reference to the drawings.
[0019]
BEST MODE FOR CARRYING OUT THE INVENTION
FIG. 1 shows a schematic configuration for performing line switching between a mobile phone 1 functioning as a browser phone and an extension phone 7 disposed in a private telephone network, using a telephone switching system according to the present invention. ing. The mobile phone 1 can communicate with both the packet switching system and the circuit switching system. In the packet switching communication, a packet transmitted from the mobile phone 1 is transmitted from a base station 2a which performs wireless communication with the mobile phone 1 to a gateway 2b. The packet is delivered to the server system 3 via the packet communication network 2c typified by the Internet as a relay point, and the router 2d in the office where the private telephone network is constructed as a relay point. Is also transmitted along the above-mentioned reverse path, and in the circuit-switched communication, the private telephone is connected from the base station 2a to the exchanges 2e and 2g located at both ends of a circuit-switched communication network 2f represented by a public telephone network as relay points. A communication link between the mobile phone 1 and the extension phone 7 is established under the intermediary of the exchange 6 in the business establishment constructing the network.
[0020]
As shown in FIG. 2, the mobile phone 1 functioning as a browser phone has a radio control unit 11 having a radio reception function and a radio transmission function, and a signal processing unit having a modulation / demodulation function and a voice codec function. 12, a communication protocol processing unit 13 that implements a communication protocol such as a circuit switching system or a packet switching system, an application unit 14 that implements an e-mail program or an Internet browser program that operates in a communication protocol environment, A user interface unit 15 having an input / output control function for controlling a key matrix 1a as a means and a liquid crystal display 1b as a data display means and a Japanese conversion function, and a controller for controlling these components Of the CPU 10.
[0021]
That is, since the mobile phone 1 functions as a browser phone, an Internet connection environment and an Internet browser program are incorporated, and various keys constituting the key matrix 1a are operated to access various servers through the Internet. From there, an HTML file or an image file can be downloaded, the layout can be analyzed and displayed on the liquid crystal display 1b. It is also possible to transmit data from a user using the mobile phone 1 to a server using a form, and to operate application software described in Java or the like.
[0022]
In FIG. 3, schedule information of a specific person in charge as a communication partner is received from an external mobile phone (browser phone) 1 through a packet switching network 2c, and the schedule information (information on where one is currently located) is taken into consideration. In response, a block diagram of a telephone switching system for sending back an extension telephone connection request to call back the browser phone through the circuit switching network 2f and establish a communication link between the external mobile telephone 1 and the local extension telephone 7 is shown. ing. In this embodiment, in addition, in response to a line connection request from the mobile phone 1, the person in charge of the extension phone makes an inquiry as to whether or not he / she wants the call. A function of calling back the mobile phone 1 via the switching network 2f is added. Of course, it is also possible to completely omit such a function or to select and use this function based on the information of the transmission source.
[0023]
This telephone switching system basically comprises a server system 3 for transmitting data to and from the mobile phone 1 via a packet switching network 2c and a private branch exchange 6 for connecting to the mobile phone 1 via a circuit switching communication network 2f. The server system 3 includes a WWW server unit 31 functioning as a communication information processing unit 30, a mail server unit 32, a DNS server unit 33, an application server unit 4, and a data server unit 5.
[0024]
The database server unit 5 stores various information of the mobile phone 1 registered to make a call with the extension phone 7 in the business office, for example, a mobile phone ID, a password, an owner ID, an owner name, an institution belonging to the owner. A mobile phone database 51 storing names (affiliation name), a mobile phone number, an e-mail address, etc .; an extension phone database 52 storing various information of the extension telephones 7 in the business; , And various databases such as an employee database 54 storing employee information such as an employee ID, an employee name, and an affiliation name. These databases are managed by various programs installed in the application server unit 4, such as search / extraction and registration / update.
[0025]
The extension telephone database 52 includes an extension number file storing an extension telephone ID, an extension telephone number, an employee ID of an employee assigned the extension telephone, and the like, an extension telephone ID, a location name of the extension telephone, and a location name thereof. And an extension arrangement file storing a location ID and the like corresponding to the extension number, and these two files are related using the extension telephone ID as a key. Further, it can be related to the employee database 54 using the employee ID as a key.
[0026]
The data file structure of the schedule database 53 has fields such as a record number, a date, an employee ID, a time zone, and a location ID, as schematically shown in FIG. It is linked to the employee database 54 through the field of the employee ID, from which the employee name and affiliation can be read. In addition, it is associated with the extension arrangement file of the extension telephone database 52 through the field of the location ID, and as a result, from each record of the schedule database 53, that is, information on the location of each employee by time zone, The telephone number of the extension telephone 7 capable of talking can also be read.
[0027]
Since the functions of the WWW server unit 31, the mail server unit 32, and the DNS server unit 33 are well known, the description thereof will be omitted. However, the application server unit 4 is provided with hardware or It is constructed by software or both, and typically receives communication data from the WWW server unit 31 and communicates with the mobile phone 1 which has accessed the WWW server unit 31 via a packet switching network. The mobile phone database 51 is used to access the mobile phone 1 and extract additional information (mobile phone number, owner name, password, e-mail address, etc.) of the mobile phone 1 to identify or authenticate the mobile phone 1. 41 and extension guidance information on extension telephones assigned to employees belonging to this business office A schedule information management unit 43, which is incorporated into the schedule information and converted into, for example, an HTML document and transmitted to the mobile phone 1 via the WWW server unit 31, and schedule information provided through the WWW server unit 31 and also having a function as extension guide information. A connection request from the mobile phone 1 to the designated extension telephone 7 based on the judgment of the originator while watching is received via the WWW server unit 31 and extension telephone connection information is generated based on the extension telephone connection request to generate the exchange 6 Line connection management unit 42 for outputting to
[0028]
In this embodiment, the extension telephone connection information generated by the line connection management unit 42 includes the telephone number of the mobile phone 1 requesting connection to the designated extension telephone 7 and the owner name (user name) thereof. Affiliation name (affiliation name) is included.
[0029]
The exchange 6 has the functions of a normal private branch exchange, and the function of characterizing the invention in its application processing unit is constructed by hardware and / or software. A typical example thereof is the extension telephone connection information. A call is made to the corresponding extension phone 7 on the basis of the above, and a call is made to the inherited extension person in charge with the mobile phone specific data (telephone number or department or name of the other party) included in the extension phone connection information. And a call confirmation unit 61 for confirming whether or not to perform the call. If the call confirmation unit 61 confirms that the extension phone 7 is to talk to the mobile phone 1, the telephone of the mobile phone 1 included in the extension phone connection information A line connection control unit 62 that establishes a communication link between the mobile phone 1 and the extension phone 7 by calling back the number via the circuit switching network 2f. .
[0030]
In this embodiment, the call confirmation unit 61 is provided with a voice guidance function, and when confirming the call permission / prohibition with the person in charge of the extension telephone 7, the name data of the caller included in the extension telephone connection information is provided. To provide voice guidance, for example, "Do you want to connect the phone call from Mr. XX?", And perform voice recognition of the "Yes" or "No" voice message from the extension staff to confirm whether or not the call is permitted. It is possible to confirm whether or not the call is permitted by operating a preset button of the extension telephone 7. When this call is permitted, the call back establishes a communication link between the mobile phone 1 and the extension phone 7 to start the call as described above. If the call is rejected, the call rejection code is displayed. Returned from the call confirmation unit 61 to the line connection management unit 42, the line connection management unit 42 instructs the mail server unit 32 to transmit an e-mail describing that the call cannot be accepted at this time to the mobile phone 1. It is configured as follows.
[0031]
Next, using the above-described telephone exchange system according to the present invention, a communication line link is actually established between the mobile telephone 1 and the extension telephone 7 from a call request from the external mobile telephone 1 to the extension telephone 7 in the premises. A typical flow up to this point will be described below with reference to FIG. 5 showing a connection procedure and FIGS. 6 to 8 showing screens displayed on the liquid crystal display 1b of the mobile phone 1 at that time.
[0032]
Here, it is assumed that Mr. A uses the mobile phone 1 from outside to call Mr. X in the office. First, Mr. A operates the key matrix 1a of the mobile phone 1, activates an Internet browser program installed in the application unit 14, and accesses the WWW server unit 31 of the telephone exchange system via the Internet 2c (# 01), the front page of the extension exchange reception guide is loaded (# 02). This front page, as shown in FIG. 6, constitutes a login screen for extension guidance, and prompts the user to enter an ID and password given when registering to use this telephone exchange system. When the login is performed by inputting the ID and the password (# 03), the login data is transferred from the WWW server unit 31 to the transmission source identification unit 41 for authentication (# 04). The sender identification unit 41 accesses the mobile phone database 51 to check whether the ID and password entered by Mr. A are correct, and if so, responds to the WWW server unit 31 with an authentication confirmation (# 05). At the time of this authentication confirmation processing, the telephone number of the mobile phone 1 of Mr. A, the institution (affiliation), and the mail address of Mr. A are taken out from the mobile phone database 51 and temporarily stored in the memory as necessary. You.
[0033]
When the sender is authenticated, the WWW server unit 31 transmits the employee guidance or the extension guidance screen data created in the application server 4 based on the extension number file of the extension telephone database 52 and the data retrieved and extracted from the employee database 54. The mobile phone 1 is loaded (# 06). FIG. 7 shows an example of a guidance screen displayed on the liquid crystal display 1b when the guidance screen data is loaded on the mobile phone 1. On the screen displayed first, a frame for selecting a department is arranged, and a target department, which is a department of Mr. X in this case, is operated by a simple operation using a hierarchical display screen structure (pop-up menu, pull-down menu, etc.). Can be selected (Fig. 7 (a)). When a department is selected, the screen is switched, and a list of employee names of persons belonging to the selected department is displayed (FIG. 7B). When the user who wants to make a call is checked from the name display list and the select button is pressed, the checked employee name or a code (such as an employee ID) corresponding to the checked employee name is sent to the WWW server unit 31 (# 07).
[0034]
When the WWW server unit 31 transfers the employee name or the employee ID received to the schedule management unit 43 and requests the schedule screen data (# 08), the schedule management unit 43 sets the schedule data of the relevant employee on that day or after the actual time on that day. Is extracted from the schedule database 53, and schedule screen data (generally, a document in an HTML file) is created on the day of the relevant employee or after the actual time of the day, and is transferred to the WWW server unit 31 (# 09). When the schedule screen document file is loaded from the WWW server unit 31 to the mobile phone 1 (# 10), a schedule screen as shown in FIG. 8 is displayed on the liquid crystal display 1b. At this time, the schedule item corresponding to the actual time is characterized by blinking display, frame display, and the like.
[0035]
From the schedule screen, Mr. A, who is the sender, can understand that Mr. X (Taro Osaka in the drawing) is not his / her own seat but the second meeting room at present. Here, in order to refrain from interrupting the telephone call during the conference, the cancel button is pressed to cancel the current call. However, if the call is urgent and a call with Mr. X is required, the user presses the extension connection button and transmits extension selection information to the WWW server unit 31 (# 11). In this example, the second conference room is selected, but in a program, the second conference room as its location and the extension number of the extension telephone 7 assigned to the second conference room are linked. As a result, the extension telephone 7 of the second conference room is selected as the destination. Therefore, when the user is located at his / her own seat, the user selects his / her seat, that is, the extension telephone 7 assigned to himself / herself.
[0036]
Next, the extension telephone number of the callee as the callee selection (extension selection) information sent from the mobile phone 1 is the callee information (calling mobile phone number, caller name, caller name, etc.) temporarily stored in the memory. The request is transferred from the WWW server 31 to the line connection management unit 42 as an extension telephone connection request combined with the caller affiliation name, mail address, etc. (# 12). The line connection management unit 42 converts the received extension telephone connection request into a control command format for the exchange 6 and sends it to the call confirmation unit 61 of the exchange 6 (# 13). The control command format includes a data area in which reading data of a calling mobile phone number and a calling party name (including a calling party affiliation name if necessary) and an extension phone number are described.
[0037]
Upon receiving the control command based on the extension telephone connection request, the call confirmation unit 61 first passes the extension telephone number included in the control command to the line connection control unit 62, and requests a call of the extension telephone 7 (# 14). ). When the line connection control unit 62 makes a call to the extension telephone 7 (# 15) and gets a hook-off signal by removing the handset of the extension telephone 7 (# 16), the call confirmation unit 61 sends the extension telephone 7 a call. (# 17).
[0038]
The call confirming unit 61 having the voice synthesis function and the voice recognition function transmits, to the hooked-off receiver, the caller name and / or the affiliation name included in the previously received control command and the read data of both, in advance. Guidance voice generated by combining voice signals of specific words that are stored, for example, "A Mr. A of B Business Unit is calling Mr. X over an outside line. , Please answer in the absence "is transmitted to the extension phone 7 as to whether or not to receive a call from an outside line (# 18).
[0039]
When "Yes" is returned in response to such a permission question (# 19), the call confirmation unit 61 passes the mobile phone number included in the previously received control command to the line connection control unit 62 and Request a callback to the mobile phone 1 via the circuit-switched communication network 2f (# 20). The line connection controller 62 calls back the mobile phone 1 having the given mobile phone number in a well-known manner (# 21). This callback causes an incoming call to the mobile phone 1 of Mr. A. When Mr. A hooks off the mobile phone 1, this hook-off signal is transmitted to the line connection control unit 62 (# 22), and the line connection receiving the hook-off signal The control unit 62 establishes a line link between the extension telephone 1 of Mr. X and the mobile telephone 1 of Mr. A using the line switching communication network 2f (# 23).
[0040]
FIG. 9 shows the procedure, but in the case where the answer to the question as to whether or not to accept the call from the outside line made to the extension phone 7 in step # 18 is "No", or a case where a person other than the person himself / herself has dealt with it. If a response such as "absence" is made ("# 25"), the call confirmation unit 61 determines this response by the voice recognition function, and indicates that the person in charge is in special work or the person is absent. The extension connection disable information is notified to the line connection management unit 42 together with the reason code (# 26). The line connection management unit 42 having received the extension connection disable information discards the current extension phone connection request and disables the call to the mobile phone 1 that has made the extension phone connection request based on the call disable reason code. It requests the mail server unit 32 to transmit an apology mail describing the reason (# 27). The mail server unit 32 creates an e-mail for explaining that the call is not possible based on the call-disabling reason code received from the line connection management unit 42, and simultaneously sends the e-mail to the e-mail address of the mobile phone 1 received from the line connection management unit 42 It is transmitted (# 28).
[0041]
In the above-described embodiment, the answer to the call permission / prohibition question from the extension phone 7 in step # 19 or step # 25 is made by voice, and the answer is determined by the voice recognition function of the call confirmation unit 61. Instead of a simple voice recognition, the determination command may be sent to the call confirmation unit 61 using a button provided on the extension phone 7.
[0042]
An important point of the present invention is that it is possible to check a schedule of a partner who wants to talk from a mobile phone (browser phone) as an external line using packet communication (Internet) having a low communication cost, and to check a schedule after confirming the schedule. In response to a request to connect to an extension phone, the caller of the other party is checked for permission to make a call to this extension, and only when the call request is permitted, is the call-back function provided between the extension phone and a mobile phone with a relatively high communication fee. The purpose of this is to establish a telephone call through a circuit-switched communication network 2f for a telephone (browser phone). Various modifications for realizing such an idea of the present invention, for example, integration of each component of the server system 3 and change of the role assignment between the server system and the exchange are also included in the present invention.
[Brief description of the drawings]
FIG. 1 is an explanatory diagram schematically illustrating a mode of performing line switching between a mobile phone and an extension phone using a telephone switching system according to the present invention. FIG. 2 is a functional block diagram illustrating an example of a mobile phone used in the present invention. FIG. 3 is a functional block diagram of a telephone exchange system used in the present invention. FIG. 4 is an explanatory diagram illustrating a data structure of a schedule database. FIG. 5 is a communication line between a mobile phone and an extension telephone in this telephone exchange system. Connection procedure diagram for explaining the flow until a link is established. [FIG. 6] Login screen for extension guidance used in this telephone exchange system. [FIG. 7] Shows extension guidance screen used in this telephone exchange system. FIG. 8 is a diagram showing a schedule screen used in this telephone exchange system. FIG. 9 A call with a mobile phone is rejected in this telephone exchange system. Connection procedure diagram illustrating the post-processing [Description of symbols]
1 Browser phone (mobile phone)
7 extension telephone 2c packet switching network 2f circuit switching network 30 communication information processing unit 31 WWW server unit 32 mail server unit 41 sender identification unit 42 line connection management unit 43 schedule information management unit 51 mobile phone database 52 extension phone database 53 schedule database 54 Employee database 61 Call confirmation unit 62 Line connection control unit

Claims (6)

Communication for transmitting scheduler information and extension guidance information to the browser phone through communication with the browser phone accessed via the packet switching network, and receiving an extension phone connection request from the browser phone for the selected extension phone Information processing unit,
A sender identification unit that identifies at least a telephone number of the browser phone;
A line connection management unit that generates extension telephone connection information including the telephone number of the selected extension telephone and the telephone number of the browser phone based on the extension telephone connection request;
A line connection control unit that establishes a communication link between the browser phone and a corresponding extension phone by making a callback to the browser phone via a circuit switching network based on the extension phone connection information. Characteristic telephone exchange system. The telephone exchange system according to claim 1, wherein the extension guide information is linked to the staff schedule information. A call confirmation unit for confirming whether or not a call to the browser phone is permitted with respect to a corresponding extension phone based on the extension phone connection information, and the call confirmation unit confirms permission of a call to the browser phone 3. The telephone exchange system according to claim 1, wherein the line connection control unit establishes a communication link between the browser phone and the extension telephone in such a case. 4. The extension source connection unit according to claim 3, wherein the transmission source identification unit has a function of identifying user information of the browser phone as a transmission source, and the extension telephone connection information includes the user information. Telephone exchange system. The telephone exchange system according to claim 4, wherein the call confirmation unit transmits a user name included in the user information to the extension telephone by voice when confirming whether or not the extension telephone is permitted. The telephone according to any one of claims 3 to 5, wherein the communication information processing unit notifies the browser phone via the packet switching network that the call is not permitted if the call with the browser phone is not permitted. Exchange system.

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