JP2007019839A - Client/server system and incoming call bypassing group management method thereof - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a client/server system for achieving an incoming call bypassing method and an incoming call bypassing group management method thereof. <P>SOLUTION: The client/server system 10 has a plurality of SIP clients 14 and 16 registered at an SIP server 12 to communication with other terminals. The SIP server 12 refers to incoming call bypassing group management information in which two or more SIP clients are set as an incoming call bypassing group, and enables incoming calls to bypass to other SIP client with respect to an incoming call request to an unusable SIP client. The SIP client adds updating information for updating the incoming call bypassing group management information to a registered message and supplies the information to the SIP server 12. The SIP server 12 updates and sets the incoming call bypassing group management information corresponding to the updating information added to the registered message. Thus, the information regarding the incoming call bypassing group can be easily set and changed by a maintainer. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a client server system that realizes an incoming call bypassing method and an incoming call bypass group management method thereof.

  In general, in a client server system in a Session Initiation Protocol (SIP) environment, a SIP client (SIP-C) sends a registration message (REGISTER) to register its own device information such as a telephone number with the SIP server. This makes it possible to accept incoming calls from other SIP clients.

  Conventionally, in a client server system, if a plurality of SIP-Cs are grouped and registered in a server as a predetermined incoming call bypass group, the server cannot use the predetermined SIP-C in the incoming call bypass group. If this happens, connectivity can be continued by bypassing and using another SIP-C.

  In order to realize such an incoming call bypass function, management information that can confirm the incoming call bypass group is held in the SIP server, and the maintainer of the client server system sets data held as this management information in the SIP server. Can be managed.

By the way, in the cell transfer system described in Patent Document 1, a unique identification number in the network is assigned to the interface point between the ATM network and the cell transfer device, and the cell is transferred from the source cell transfer device to the destination cell transfer device. In this case, the identification number assigned to the interface point to which the destination cell transfer device is connected is written as the cell transfer device identification number in the routing header of the cell, and the cell switching node identifies the identification added to the routing header of the input cell. By adopting a configuration in which cells are transferred without rewriting routing header information according to numbers, communication can be started without performing complicated connection settings, and communication can be performed even if a call setting server fails.
JP-A-6-318951

  In the conventional client server system, the maintenance person needs to set data of the incoming call bypass group management information in the SIP server in advance. In this system, for example, when a new SIP client is added, it is necessary to additionally set the added SIP client information in the incoming call bypass group management information. However, this system cannot change or set the management information unless it is not used at night, and it is necessary to perform data setting work with a maintenance person.

  In addition, in the conventional client server system, even if it is desired to change management information such as a priority order that is detoured when an incoming call is made, the data change work cannot be performed without the intervention of a maintenance person.

  In this way, when performing maintenance such as setting and changing grouping information on a SIP server in a conventional client-server system, it is necessary to directly operate the server through maintenance personnel, such as labor costs and construction costs. Costs.

  Further, the cell transfer system described in Patent Document 1 can transfer cells according to the identification number added to the routing header and perform communication without performing complicated connection settings. When changing, it is inevitable that the maintenance person sets it directly in the routing tag table.

  The present invention provides a client server system and a method for managing an incoming call diversion group in which a maintenance person can easily set and change information related to an incoming call diversion group in a SIP server, eliminating the drawbacks of the conventional technology. The purpose is to do.

  In order to solve the above-described problems, the present invention registers a SIP server that operates in a network environment based on a Session Initiation Protocol (SIP) and the SIP server, thereby connecting to the SIP server and performing communication. In a client server system including a SIP client that can perform management information setting means for setting one or more registered SIP clients as incoming bypass groups in incoming bypass group management information, and By referring to the incoming call diversion group management information, when an incoming call to an unusable SIP client among the SIP clients in this incoming call diversion group is requested, an incoming call diverting means for making a detour and receiving an incoming call to another SIP client The management information setting means includes one or more of this incoming call diversion group. Is set in the incoming call diversion group management information, and for each of the one or more incoming call diversion groups, information used when executing the incoming call diversion means is set in the incoming call diversion group management information. When a registration message for registering a client with this SIP server is supplied to this SIP server, information related to this SIP client, and update information for updating this incoming call bypass group management information is added to this registration message and supplied. When receiving this registration message, the SIP server updates the incoming call bypass group management information in accordance with the update information added to the registration message.

  An incoming call bypass group management method for a client server system that includes a SIP server that operates in a SIP network environment and a SIP client that can communicate by connecting to the SIP server by registering with the SIP server One or more registered SIP clients are set as an incoming call bypass group, and one or more incoming call bypass groups are set for each of the one or more incoming call bypass groups. Next, referring to the management information setting step for setting information used when executing this incoming call bypassing means and this incoming call bypass group management information, the SIP client in this incoming call bypass group is referred to an unusable SIP client. Bypass incoming calls to other SIP clients when they are requested When the SIP client supplies a registration message for registering the SIP client to the SIP server to the SIP server, information related to the SIP client and to update the incoming call bypass group management information. The first step of supplying the update information to the registration message, and when receiving the registration message at the SIP server, the incoming call bypass according to the update information added to the registration message And a second step of updating the group management information.

  According to the client server system of the present invention, a SIP client adds update information about an incoming call diversion group to generate a registration message to the SIP server, and the SIP server sends incoming call diversion group management information according to the update information in the registration message. By updating, the SIP server can automatically update the incoming call bypass group management information without performing data setting work through a maintenance person.

  As a result, the client server system of the present invention sets or changes incoming bypass group management information related to the SIP client when a new SIP client is added or when the bypass priority is changed as SIP client information. The construction cost for the user can be reduced. In addition, a user who communicates using this system can make a detour connection using the latest incoming call detour group management information when a failure occurs in the SIP client.

  Next, an embodiment of a client server system according to the present invention will be described in detail with reference to the accompanying drawings. For example, as shown in FIG. 1, the client server system 10 of the present invention registers a plurality of SIP clients 14 and 16 in the SIP server 12 in a network environment based on a session initiation protocol (SIP). For example, a SIP server 12, a plurality of SIP clients 14 and 16, and a private branch exchange (PBX) 18 are connected to each other via a LAN. Note that portions not directly related to understanding the present invention are not shown and redundant description is avoided.

  In this embodiment, the client server system 10 may actually include a large number of SIP clients, but only a small number of SIP clients 14 and 16 are shown in FIG. 1 to avoid complexity.

  Further, the client server system 10 may be one in which the SIP server 12, the plurality of SIP clients 14 and 16, and the PBX 18 are connected to each other via a LAN.

  The SIP server 12 is a server that responds to a client request based on SIP, which is a client server model protocol. In particular, for example, RFC (Request For Comments) 3261 defined by the International Engineering Task Force (IETF). It has a function to handle and manage SIP conforming to. Of these management functions, the SIP server 12 generally includes three server functions, namely, a SIP proxy server function, a SIP registrar server function, and a SIP location server function.

  Further, the SIP server 12 can register a plurality of SIP clients 14 and 16, and can accept an incoming call to the registered SIP client. For example, the SIP server 12 has a function of connecting and processing SIP messages with this registered SIP client in a SIP environment. The SIP server 12 of this embodiment may register its own device information such as a telephone number related to the SIP client in the SIP server 12 in response to a registration message (REGISTER) from the SIP client.

  In this embodiment, the SIP server 12 can set one or more registered SIP clients as an incoming call bypass group, and can manage one or more incoming call bypass groups. The SIP server 12 has an incoming call bypass function for bypassing incoming calls to other SIP clients when an incoming call to an unusable SIP client is requested among the SIP clients set in a predetermined incoming call bypass group. .

  In addition, as shown in FIG. 2, the SIP server 12 of the present embodiment holds incoming call bypass group numbers for identifying a plurality of incoming call bypass groups as incoming call bypass group management information, and for each of the multiple incoming call bypass groups, As information used when the incoming call bypass function is executed, a different SIP URI or incoming call priority may be held for each set SIP client. The SIP server 12 may have a storage device such as a database or a memory and hold such incoming call bypass group management information. The SIP server 12 can make a call detour so as to reach a SIP client with the highest priority among the available SIP clients in a predetermined call diversion group.

  Particularly in this embodiment, the SIP server 12 can update the setting of the SIP client to the incoming call bypass group in response to a registration message from the SIP client.

  For example, the SIP server 12 analyzes the REGISTER supplied from the SIP client 14 and reads the update information of the incoming call bypass group management information such as the incoming call bypass group number, SIP URI, and incoming call priority from the Call-ID header of the REGISTER. . The SIP server 12 updates incoming call bypass group management information related to the SIP client 14 based on the read update information. If the incoming call bypass group or SIP client indicated by the read update information is not set as the incoming call bypass group management information, the SIP server 12 may be newly set.

  The SIP clients 14 and 16 connect to the SIP server 12 and use the SIP application function, and may connect a plurality of SIP terminals such as personal computers and SIP softphones.

  In this embodiment, each of the SIP clients 14 and 16 has a function of supplying a registration message (REGISTER) to the SIP server 12 in order to register the own device with the SIP server, and the own device information such as a telephone number by the REGISTER. May be supplied to the SIP server 12. The SIP clients 14 and 16 may supply REGISTER to the SIP server 12 at the initial time, that is, when the SIP client is activated, or periodically, that is, every time a predetermined time elapses after the activation.

  Particularly in the present embodiment, the SIP clients 14 and 16 have a function of adding and supplying update information of the incoming call bypass group management information to the REGISTER. For example, as shown in FIG. 3, the SIP clients 14 and 16 may add the incoming call bypass group number and the incoming call priority to the upper 4 digits of the Call-ID header of REGISTER. The SIP clients 14 and 16 are not limited to newly registering the SIP client in the SIP server 12, and may generate a REGISTER including such a Call-ID header.

  The PBX 18 is a private branch exchange that accommodates a plurality of PBX-accommodating terminals such as analog telephones, and mainly has a function of performing exchange processing between terminals accommodated in the PBX 18. The PBX 18 of this embodiment is connected to the SIP clients 14 and 16 to enable communication between the PBX accommodating terminal and the SIP terminal.

  Next, the operation of the client server system 10 in the present embodiment will be described with reference to the sequence chart of FIG. 4 for setting an incoming call bypass group when a new SIP client is registered.

  In this embodiment, first, the SIP client 14 having the telephone number “12340000” and the SIP URI “XXXXXXX @ SIP-C # 1” is registered in the SIP server 12 as its own device information. As the update information of the group management information, update information consisting of the incoming call bypass group number “01” and the incoming call priority “01” is set in the SIP server 12.

  At this time, in the SIP client 14, as shown in FIG. 3, the incoming call detour group number “01” is added to the upper first digit and the second digit, and the incoming call priority “01” is added to the upper third digit and the fourth digit. Call-ID “0101XXXXXXX @ SIP-C # 1” is generated, and a registration message (REGISTER) including this Call-ID is supplied to the SIP server 12 (S102). In the following description, each signal is specified by the reference number of the connecting line in which it appears.

  Next, in the SIP server 12, registration of the SIP client 14 and setting of incoming call bypass group management information related to the SIP client 14 are performed in accordance with REGISTER (S104).

  Here, first, the own device information of the SIP client 14 indicated by the REGISTER is registered in the SIP server 12, and further, the REGISTER is analyzed, and the incoming call bypass group number “01” from the Call-ID “0101XXXXXXX @ SIP-C # 1” The incoming call priority “01” and the SIP URI “XXXXXXX @ SIP-C # 1” are read out. In the SIP server 12, group detection is performed to detect whether this incoming call bypass group number “01” is set in the incoming call bypass group management information. Since this is not set here, the incoming call bypass group number “01” An additional setting is added to the incoming call diversion group management information, and update information consisting of the SIP URI “XXXXXXX @ SIP-C # 1” and the incoming call priority “01” is added to the group with this number as information about the SIP client 14. The

  Next, in this embodiment, the SIP client 16 having the telephone number “12341111” and the SIP URI “XXXXX @ SIP-C # 2” is registered in the SIP server 12 as its own device information. As the update information of the bypass group management information, update information including the call bypass group number “01” and the call priority “02” is set in the SIP server 12.

  At this time, the SIP client 16 adds the incoming call bypass group number “01” to the upper first digit and the second digit and the incoming call priority “02” to the upper third digit and the fourth digit in the same manner as described above. Call-ID “0102XXXXX @ SIP-C # 2” is generated, and REGISTER including this Call-ID is supplied to the SIP server 12 (S106).

  Next, the SIP server 12 performs registration of the SIP client 16 and setting of incoming call bypass group management information related to the SIP client 16 in accordance with REGISTER (S108).

  At this time, the SIP server 12 first registers its own device information of the SIP client 16 indicated by the REGISTER in the SIP server 12, and further analyzes the REGISTER and bypasses the incoming call from its Call-ID “0102XXXXX @ SIP-C # 2” The group number “01”, the incoming call priority “02”, and the SIP URI “XXXXX @ SIP-C # 2” are read. In the SIP server 12, group detection is performed to detect whether or not this incoming call bypass group number “01” is set in the incoming call bypass group management information, and since it has already been set here, adding a group number is not possible. Absent. Next, the SIP server 12 performs client detection to detect whether or not information related to the SIP client 16 is set in the group of this number, and here, the SIP URI “XXXXXXX @ SIP-C # 2” is set. Therefore, as information related to the SIP client 16, update information including the SIP URI “XXXXXXX @ SIP-C # 2” and the incoming call priority “02” is additionally set in the group of this number.

  Further, in the client detection in the SIP server 12, when information related to the SIP client 16 is set in the group indicated by the group number, the SIP URI “XXXXXXX” is located at the position corresponding to the information related to the SIP client 16 in the incoming call bypass group management information. Update information consisting of @ SIP-C # 2 ”and incoming call priority“ 02 ”may be updated.

  In this way, in the client server system 10 of the present embodiment, the SIP clients 14 and 16 are newly registered in the SIP server 12 and an incoming call bypass group is set.

  Next, with regard to the operation of the client server system 10 in the present embodiment, the normal incoming call operation for the SIP clients 14 and 16 registered in the SIP server 12 as described above will be described with reference to the sequence chart of FIG.

  Here, explanation will be given on the operation when there is an incoming call from another terminal having own device information “12343333” when a normal incoming call which can use both SIP clients 14 and 16 and does not require an incoming call detour is made. To do.

  First, when an INVITE message is transmitted from another terminal having its own device information “12343333” to the SIP client 14 having its own device information “12340000” (S112), the SIP client 14 receives this INVITE message without any problem. The incoming call can be received in response to the Ringing message (S114).

  Further, even if an INVITE message is transmitted from another terminal having own device information “12343333” to the SIP client 16 having own device information “12341111” (S116), the SIP client 16 does not have any problem with this INVITE message. The incoming call can be received in response to the Ringing message (S118).

  Next, with regard to the operation of the client server system 10 in the present embodiment, the operation of incoming call detouring will be described with reference to the sequence chart of FIG. 6 for the SIP clients 14 and 16 registered in the SIP server 12 as described above.

  Here, the operation when there is an incoming call from another terminal having own device information “12343333” when the incoming call detour is necessary because the SIP client 14 cannot be used will be described.

  In this case, even if an INVITE message is transmitted from another terminal having own device information “12343333” to the SIP client 14 having own device information “12340000” (S122), the SIP client 14 cannot be used. It is not possible to respond to the SIP server 12 for the INVITE message (S124).

  At this time, in the SIP server 12, since there is no response to the INVITE message from the SIP client 14, it is determined that the SIP client 14 cannot be used, and the incoming call bypass function is executed (S126).

  When the SIP server 12 executes the incoming call bypass function, it first refers to the incoming call bypass group management information and detects the incoming call bypass group for which the SIP client 14 is set. Next, the SIP client with the highest priority is detected from the detected incoming call bypass group, excluding the SIP client 14, and here, the SIP client 16 is detected.

  Next, the SIP server 12 converts the INVITE message from another terminal having its own device information “12343333” into an INVITE message having the SIP client 16 having its own device information “12341111” as the destination, and An INVITE message is transmitted to the SIP client 16 (S128). The SIP client 16 can receive the INVITE message without any problem and receive the incoming call in response to the Ringing message (S130).

  Next, with respect to the operation of the client server system 10 in the present embodiment, the operation of adding a new SIP client and changing the incoming call priority associated therewith to the SIP server 12 in which the SIP clients 14 and 16 are registered as described above. Will be described with reference to the sequence chart of FIG.

  In this embodiment, first, the SIP client 22 having the telephone number “12342222” and the SIP URI “XXXXX @ SIP-C # 3” is registered in the SIP server 12 as its own device information. As the update information of the group management information, update information consisting of the incoming call bypass group number “01” and the incoming call priority “01” is set in the SIP server 12.

  At this time, the SIP client 22 adds the incoming call bypass group number “01” to the upper first digit and the second digit and the incoming call priority “01” to the upper third digit and the fourth digit in the same manner as described above. Call-ID “0101XXXXX @ SIP-C # 3” is generated, and REGISTER including this Call-ID is supplied to the SIP server 12 (S142).

  Next, in the SIP server 12, registration of the SIP client 22 and setting of the incoming call bypass group management information related to the SIP client 22 are performed in accordance with REGISTER (S144).

  At this time, the SIP server 12 first registers its own device information of the SIP client 22 indicated by the REGISTER with the SIP server 12, and further analyzes the REGISTER and bypasses the incoming call from its Call-ID “0101XXXXX @ SIP-C # 3”. The group number “01”, the incoming call priority “01”, and the SIP URI “XXXXX @ SIP-C # 3” are read. In the SIP server 12, since the group detection of the incoming call bypass group number “01” is performed and the group number “01” is already set, the client detection of the SIP client 22 is performed. Here, since the SIP URI “XXXXXXX @ SIP-C # 3” is not set, the SIP URI “XXXXXXX @ SIP-C # 3” and the incoming call priority “01” are added to the group of this number as information regarding the SIP client 22. "Is additionally set.

  Next, in the SIP server 12, in accordance with the additional setting of the SIP client 22, the overlapping incoming call priority in the incoming call bypass group management information is changed (S146).

  In this embodiment, the SIP server 12 detects a SIP client other than the SIP client 22 set with the incoming call priority “01” from the group of the incoming call bypass group number “01” in the incoming call bypass group management information. Then, the SIP client 14 is detected. The SIP server 12 changes the setting so that the detected incoming priority of the SIP client 14 is lowest in the group.

  Here, the SIP server 12 sets update information including the incoming call bypass group number “01” and the incoming call priority “03” in the SIP server 12 as update information of the incoming call bypass group management information related to the SIP client 22. In the SIP server 12, this incoming call bypass group number “01” has already been set as incoming call bypass group management information, and the client information indicated by the SIP URI “XXXXXXX @ SIP-C # 1” is added to the group of this number. Since it has already been set, the incoming call priority “03” is set in the information of this client and updated.

  In this embodiment, when new SIP client information is added to the incoming call bypass group management information in the SIP server 12, if the incoming call bypass group number and the incoming call priority are duplicated, the new SIP client is given priority. Set and change the incoming call priority of the previous SIP client to the lowest, but in that group, the incoming call priority is sequentially set for all the information related to the SIP client set lower than the overlapping order. You may change so that it may carry forward.

  Further, in the client server system 10 of the present embodiment, as shown in FIG. 8, the maintainer of the system 10 operates the setting screen 200 displayed by the web browser to set update information for each SIP client. As a result, the incoming call bypass group management information already set in the SIP server 12 can be updated. In the present system 10, the update information setting function using such a setting screen 200 may be constructed by software.

  Here, the maintenance person of the present system 10 can set update information of one SIP client by setting one incoming call detour information using the setting screen 200 shown in FIG. In this embodiment, the setting screen 200 can actually set a large number of incoming call bypass information, but only a small number of incoming call bypass information is shown in FIG. 8 to avoid complication.

  In the present embodiment, the maintainer of the system 10 can specify the SIP client by the contract number 202, that is, the telephone number, and further set the incoming call bypass group number 204 and the incoming call priority 206 on the setting screen 200. . The update information set on the setting screen 200 in this way is transmitted to the corresponding SIP client via the network of the system 10.

  In addition, on the setting screen 200, the update information is valid only when the unique authentication ID 208 and authentication password 210 are set correctly for each SIP client so that only the maintenance person managing the SIP client can set it. It is good to do.

  The SIP client may generate a REGISTER including a Call-ID header as shown in FIG. 3 based on the update information from the setting screen 200 and supply it to the SIP server 12.

  The SIP client normally generates a Call-ID based on the time when the REGISTER is created, the MAC address of its own device, and a random number. In this embodiment, in addition to these information, the group set on the setting screen 200 Generate Call-ID with number and priority.

  Next, the operation of the system 10 will be described with reference to the flowchart of FIG. 9 for setting update information using the setting screen 200.

  First, the maintenance person of the system 10 operates the setting screen 200 displayed by the web browser to set various information (S220). In this embodiment, the maintenance person inputs the contract number 202 of a predetermined SIP client, and further inputs the incoming call bypass group number 204 and the incoming call priority 206, and desired update information is determined. Further, the maintenance person inputs the authentication ID 208 and the authentication password 210 corresponding to a predetermined SIP client on the setting screen 200.

  Thus, the setting information composed of the information 202 to 210 input by the maintenance person is transmitted to a predetermined SIP client by operating an OK button (not shown) on the setting screen 200 according to the instruction of the maintenance person. At this time, in the present embodiment, the transmission of the setting information may be executed by software that constructs the setting screen 200, and the software sends a restart notification instructing the restart together with the setting information to the predetermined SIP. May be supplied to clients.

  When the predetermined SIP client receives setting information and a restart notification from the setting screen 200, it first checks the authentication ID 208 and the authentication password 210 to determine whether the update information is valid.

  As a result, only when it is valid, this SIP client stores the update information consisting of the incoming call bypass group number 204 and the incoming call priority 206, and re-resumes the SIP client while retaining the update information in response to the restart notification. Start up (S222).

  When the restart is completed, the SIP client reflects the stored update information, generates a REGISTER based on the new information, and supplies it to the SIP server 12 (S224).

  In response to this REGISTER, the SIP server 12 sets the update information regarding this SIP client in the incoming call bypass group management information (S226).

  In this embodiment, when a SIP client is restarted in response to a restart notification, it supplies the deleted REGISTER to the SIP server 12 and terminates the old information in the incoming bypass group of the SIP server 12 before terminating the SIP client. You may delete from management information.

It is a block diagram which shows one Example of the client server system which concerns on this invention. It is the figure which illustrated the incoming call diversion group management information which the SIP server of the client server system of the Example shown in FIG. 1 has. It is the figure which illustrated the registration message which the SIP client of the client server system of the Example shown in FIG. 1 transmits. 3 is a sequence chart for explaining an operation procedure of SIP client registration in the client server system shown in FIG. 1. FIG. 2 is a sequence chart for explaining an operation procedure of a normal incoming call in the client server system shown in FIG. 3 is a sequence chart for explaining an operation procedure for call detouring in the client server system shown in FIG. 1. 3 is a sequence chart for explaining an operation procedure of SIP client registration in the client server system shown in FIG. 1. FIG. 2 is a diagram illustrating a setting screen operated by a maintenance person in the client server system illustrated in FIG. 1. It is a flowchart explaining the operation | movement procedure which sets update information using the setting screen shown in FIG.

Explanation of symbols

10 Client server system
12 SIP server
14, 16 SIP client
18 PBX

Claims (22)

A SIP server that operates in a network environment based on the Session Initiation Protocol (SIP);
In a client server system including a SIP client that can communicate by connecting to the SIP server by registering with the SIP server,
The SIP server includes management information setting means for setting one or more registered SIP clients as incoming call bypass groups in incoming call bypass group management information;
By referring to the incoming call bypass group management information, when an incoming call to an unusable SIP client among the SIP clients in the incoming call bypass group is requested, an incoming call bypass means for bypassing and receiving an incoming SIP client Including
The management information setting means sets one or more incoming call bypass groups in the incoming call bypass group management information, and uses information used when the incoming call bypass means is executed for each of the one or more incoming call bypass groups. Set in the incoming call diversion group management information,
When the SIP client supplies a registration message for registering the SIP client to the SIP server to the SIP server, the SIP client is information about the SIP client, and updates information for updating the incoming call bypass group management information. To be added to the registration message
When the SIP server receives the registration message, the SIP server updates the incoming call bypass group management information in accordance with the update information added to the registration message.   2. The client server system according to claim 1, wherein the SIP client generates a REGISTER message as the registration message and adds the update information to a Call-ID of the REGISTER message. The client server system according to claim 1, wherein the incoming call bypass group management information includes an incoming call bypass group number that is identified for each incoming call bypass group and an incoming call priority that is different for each SIP client in the incoming call bypass group,
The update information includes the incoming call bypass group number and the incoming call priority,
The incoming call bypassing unit is configured to request an incoming call to an unusable first SIP client among SIP clients in the incoming call bypass group other than the first SIP client among SIP clients in the incoming call bypass group. A client server system characterized in that the call is detoured to the second SIP client having the highest call reception priority.   4. The client server system according to claim 3, wherein the incoming call bypass group management information includes a SIP URI that identifies the SIP client. 4. The client server system according to claim 3, wherein the SIP server detects whether or not the incoming call bypass group number is set in the incoming call bypass group management information;
Client detection means for detecting whether information related to the SIP client is set in the group indicated by the incoming call bypass group number in the incoming call bypass group management information,
When receiving the registration message from the SIP client, the group detection means detects the incoming call bypass group number of the update information added to the registration message,
If the incoming call bypass group number cannot be detected, the incoming call bypass group number is additionally set in the incoming call bypass group management information, and further, the incoming call of the update information as information on the SIP client is added to the incoming call bypass group number group. Set additional priorities,
If the incoming call bypass group number can be detected, the client detection means detects information about the SIP client from the group indicated by the incoming call bypass group number,
If information about the SIP client cannot be detected, the incoming call priority of the update information is additionally set as information about the SIP client in the group of the incoming call bypass group number,
A client server system, wherein when the information about the SIP client is detected, the incoming call priority of the update information is updated and set at a position corresponding to the information about the SIP client in the incoming call bypass group management information.   6. The client server system according to claim 5, wherein the SIP server includes a first incoming call bypass group number and a first incoming call priority of the update information added to the registration message in the incoming call bypass group management information. If it overlaps with the second incoming call bypass group number and the second incoming call priority already set, the update information is set in the incoming call bypass group management information with priority, and the second incoming call priority is set to A client server system, wherein the setting is changed to the lowest level in the group indicated by the incoming call bypass group number.   6. The client server system according to claim 5, wherein the SIP server includes a first incoming call bypass group number and a first incoming call priority of the update information added to the registration message in the incoming call bypass group management information. When the second incoming call bypass group number and the second incoming call priority order that have already been set overlap, the update information is prioritized and set in the incoming call bypass group management information, and the group indicated by the incoming call bypass group number The client server system is characterized in that the incoming call priority is changed so as to be sequentially lowered with respect to all of the information relating to the SIP client set to be equal to or lower than the overlapping incoming call priority. 4. The client server system according to claim 3, wherein the system displays a setting screen for setting the update information to be added to the registration message by a web browser, and sets the setting information set using the setting screen to the SIP. Including update information setting means for supplying to the client,
The SIP client generates the registration message by adding the update information according to the setting information supplied from the update information setting means. 9. The client server system according to claim 8, wherein the update information setting unit causes the SIP client to set a unique authentication ID and authentication password, and sets the authentication ID and the authentication password together with the setting information. To the SIP client,
The SIP client generates the registration message by adding the update information according to the setting information only when the authentication ID and the authentication password supplied from the update information setting unit are accurate. A client-server system. 9. The client server system according to claim 8, wherein the update information setting means supplies a restart notification instructing a restart together with the setting information to the SIP client.
The SIP client stores the update information including the incoming call bypass group number and the incoming call priority based on the setting information, and restarts the SIP client while retaining the update information according to the restart notification. When the restart is completed, the stored update information is reflected on the SIP client, and the update message is added to generate the registration message. The client server system according to claim 10, wherein the SIP client supplies a delete message to the SIP server before restarting the SIP client in response to the restart notification.
The SIP server deletes information on the SIP client set in the incoming call bypass group management information in response to the delete message. In an incoming call bypass group management method for a client server system, comprising: a SIP server that operates in a SIP network environment; and a SIP client that can communicate with the SIP server by registering with the SIP server. The method is
One or more registered SIP clients are set as an incoming call bypass group, and one or more incoming call bypass group management information is set for each of the one or more incoming call bypass groups. A management information setting step for setting information used when the incoming call bypassing step is executed;
An incoming call diverting step of making a detour and receiving an incoming call to another SIP client when an incoming call to an unusable SIP client is requested among SIP clients in the incoming call bypass group with reference to the incoming call bypass group management information When,
In the SIP client, when supplying a registration message for registering the SIP client to the SIP server to the SIP server, information about the SIP client, and update information for updating the incoming call bypass group management information A first step of adding and supplying to the registration message;
A second step of updating the incoming call bypass group management information in accordance with the update information added to the registration message when the SIP server receives the registration message. Detour group management method.   13. The incoming call bypass group management method according to claim 12, wherein the first step generates a REGISTER message as the registration message and adds the update information to a Call-ID of the REGISTER message. Group management method. 13. The incoming call bypass group management information according to claim 12, wherein the incoming call bypass group management information includes an incoming call bypass group number that is identified for each incoming call bypass group and an incoming call priority that is different for each SIP client in the incoming call bypass group. ,
The update information includes the incoming call bypass group number and the incoming call priority,
In the incoming call bypassing step, when an incoming call to an unusable first SIP client among the SIP clients in the incoming call bypass group is requested, other than the first SIP client in the SIP clients in the incoming call bypass group A call detour group management method comprising: detouring to the second SIP client having the highest call reception priority.   The incoming call bypass group management method according to claim 14, wherein the incoming call bypass group management information includes a SIP URI for identifying the SIP client. The incoming call bypass group management method according to claim 14, wherein the method includes:
In the SIP server, a group detection step of detecting whether the incoming call bypass group number is set in the incoming call bypass group management information;
In the SIP server, including a client detection step of detecting whether information on the SIP client is set in the group indicated by the incoming call bypass group number in the incoming call bypass group management information,
The group detection step detects the incoming call bypass group number of the update information added to the registration message when the registration message is received from the SIP client,
If the incoming call bypass group number cannot be detected, the incoming call bypass group number is additionally set in the incoming call bypass group management information, and the update information as information about the SIP client is added to the incoming call bypass group number group. A third step of additionally setting the incoming call priority;
A fourth step of performing the client detection step when the incoming call bypass group number is detected;
In a fourth step, the client detection step detects information about the SIP client from the group indicated by the incoming call bypass group number,
A fifth step of additionally setting the incoming call priority of the update information as information about the SIP client to the group of the incoming call bypass group number when information about the SIP client cannot be detected;
And a sixth step of updating and setting the incoming call priority of the update information at a position corresponding to the information about the SIP client in the incoming call bypass group management information when the information about the SIP client is detected. An incoming call bypass group management method.   17. The incoming call bypass group management method according to claim 16, wherein the sixth step includes a first incoming call bypass group number and a first incoming call priority of the update information added to the registration message in the SIP server. Is overlapped with the second incoming call bypass group number and the second incoming call priority already set in the incoming call bypass group management information, the update information is set in the incoming call bypass group management information with priority. An incoming call bypass group management method, wherein the second incoming call priority is changed and set to the lowest rank in the group indicated by the incoming call bypass group number.   17. The incoming call bypass group management method according to claim 16, wherein the sixth step includes a first incoming call bypass group number and a first incoming call priority of the update information added to the registration message in the SIP server. Is overlapped with the second incoming call bypass group number and the second incoming call priority already set in the incoming call bypass group management information, the update information is set in the incoming call bypass group management information with priority. In the group indicated by the incoming call diversion group number, all of the information related to the SIP client set to be equal to or lower than the overlapping incoming call priority is changed and set so that the incoming call priority is sequentially lowered. Incoming call bypass group management method. The incoming call bypass group management method according to claim 14, wherein the method displays a setting screen for setting the update information to be added to the registration message by a web browser, and sets the setting information set using the setting screen. Including an update information setting step for supplying to the SIP client,
The first step includes a seventh step of generating the registration message by adding the update information in accordance with the setting information supplied from the update information setting step at the SIP client. An incoming call bypass group management method as a feature. The incoming call bypass group management method according to claim 19, wherein the update information setting step causes the SIP client to set a unique authentication ID and authentication password, together with the setting information, the authentication ID and the authentication password. An eighth step of supplying a password to the SIP client;
The seventh step adds the update information according to the setting information only when the authentication ID and the authentication password supplied in the eighth step are accurate at the SIP client. And generating the registration message. The incoming call bypass group management method according to claim 19, wherein the update information setting step includes a ninth step of supplying a restart notification instructing a restart together with the setting information to the SIP client,
The seventh step stores, in the SIP client, the update information including the incoming call bypass group number and the incoming call priority based on the setting information, and responds to the restart notification supplied in the ninth step. The SIP client is restarted while retaining the update information, and when the restart is completed, the stored update information is reflected in the SIP client, and the update information is added to generate the registration message. An incoming call bypass group management method characterized by: The incoming call bypass group management method according to claim 21, wherein the seventh step is a step of restarting the SIP client in response to the restart notification supplied in the ninth step in the SIP client. A tenth step of supplying a delete message to the SIP server;
After the tenth step, the SIP server includes an eleventh step of deleting information on the SIP client set in the incoming call bypass group management information in response to the deletion message at the SIP server. Incoming call bypass group management method.

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