CN1960289A - Method and device for implementing network call after network failure - Google Patents
Method and device for implementing network call after network failure Download PDFInfo
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- CN1960289A CN1960289A CN 200610152139 CN200610152139A CN1960289A CN 1960289 A CN1960289 A CN 1960289A CN 200610152139 CN200610152139 CN 200610152139 CN 200610152139 A CN200610152139 A CN 200610152139A CN 1960289 A CN1960289 A CN 1960289A
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Abstract
The technical solution comprises: building a table of terminal location information; when SIP server failures, the source terminal gets the location information of destination terminal by enquiring the table of terminal location information, and directly initiates a point-to-point session to the destination terminal. By invention can ensure the calling service between all terminals when SIP server or other network part failures.
Description
Technical field
The present invention relates in network, ensure voip communications technology of dependability field, realize the method for Internet phone-calling behind particularly a kind of network failure, and the device of realizing this method.
Background technology
SIP (Session Initiation Protocol, session initiation protocol) is that IETF works out, and is used for multimedia communication in many ways.According to the definition of IETFRFC3261, SIP is a text based application layer control protocol, is independent of bottom host-host protocol TCP/UDP/SCTP, is used to set up, revise and stops both sides or Multimedia session in many ways on the IP network.
IP-PBX (Internet Protocol-Private Branch (telephone) eXchange, dedicated voice switch based on the IP technology) is a kind of IP-based enterprise phone system, adopt Session Initiation Protocol to create and the control session, it realizes Speech Communication by the existing data network of organization, with PSTN (Public Switched Telephone Network, Public Switched Telephony Network) network is compared, and IP-PBX provides cheap more communication plan for enterprise.
In SIP, terminal equipment is known as user agent (User Agent), communicates by sip message between them, and sip message is generally transmitted by intermediate server, is referred to as acting server (Proxy Server) in logic.Simultaneously, sip terminal is referred to as registrar (Registrar Server) in logic by sending the physical location of registration message to station server issue oneself.General these services all realize in sip server.Except the message route, sip server also provides safety certification, multiple functions such as professional triggering.
In IP-PBX, message dilivery need pass through one or more sip servers.Terminal to server is initiated request, and after server was received request, decision forwarded the request to purpose terminal or other sip server.If the server decision is delivered message to the purpose terminal, it can search the position of purpose terminal so, and request subsequently will be delivered.The final purpose terminal will be received request, according to Via (process) field of request message record, make and replying, and response message turns back to source terminal along opposite path.In a single day sip server breaks down when the network interruption occurring, and normal business can't be carried out, unaffected in order to guarantee basic conversation, and IP-PBX must call out by other approach foundation.
In the prior art, it is generally acknowledged that the PSTN network is stable, so when IP-PBX can't set up session by IP, change the PSTN network by access device.These access devices comprise media termination, media gateway, and Tandem Gateway, as shown in Figure 1.In Fig. 1, when SIP phone or media gateway were found to be registered to sip server, prompting User IP phone can't use, and used escaping exit to switch to PSTN network (among the figure shown in the heavy line) then.
Realize that behind above-mentioned network failure the switching of fault discovery and PSTN network needs the support of hardware device, and the line complexity, uses the PSTN network need increase extra communication cost simultaneously in the method for Internet phone-calling.
Realize the method for Internet phone-calling also having the redundant deployment by network in the prior art behind above-mentioned network failure, the active and standby or Hot Spare of sip server is realized Internet phone-calling, guarantees the method for the reliability of system.This method realizes complicated, cost of equipment costliness, cost height.
Summary of the invention
In order to solve in the prior art method line complexity that realizes Internet phone-calling behind the network failure, apparatus expensive, problem that the realization cost is high, the invention provides a kind of method that realizes realizing behind the low network failure of simple, cost Internet phone-calling, and the device of realizing this method.
The method that realizes Internet phone-calling behind the network failure of the present invention is: set up a terminal positional information table, behind the generation network failure, source terminal is inquired about from the terminal positional information table and is obtained the purpose location information of terminals, directly initiates point-to-point dialogue to the purpose terminal.
Described method specifically comprises:
A. all location information of terminals are set up a terminal positional information table;
B. source terminal is initiated request to sip server, and network returns request when unreachable, search purposes location information of terminals from described terminal positional information table;
C. source terminal sends point-to-point session request according to the purpose location information of terminals that checks in to the purpose terminal;
D. the purpose terminal is replied after receiving the point-to-point session request that described source terminal sends, and source terminal is set up point-to-point dialogue after receiving answer.
In the described steps A, be kept at the described terminal positional information table of setting up on the LIST SERVER or in the database.
In the described steps A, can regularly in the terminal positional information table, add the positional information of oneself,, then upgrade this positional information if had this location information of terminals in the terminal positional information table by terminal.
In the described steps A, can also regularly or in real time the location information of terminals of its acquisition be sent to described terminal positional information table by described sip server.
Realize the device of Internet phone-calling behind the network failure of the present invention, comprising:
Administration module is used to receive each location information of terminals, sets up the terminal positional information table, and this terminal positional information table is kept in the memory module;
Memory module links to each other with administration module, is used for the terminal positional information table that memory management module is set up;
Enquiry module links to each other with administration module, is used for request management module from terminal positional information table search purposes location information of terminals;
Request module links to each other with enquiry module, and the purpose terminal positional information that is used for checking in according to enquiry module is set up point-to-point dialogue to the purpose terminal request;
Sending module links to each other with administration module, is used for sending location information of terminals to administration module.
Described device also comprises timer, links to each other with sending module, is used to sending module to send terminal positional information and sets a time cycle.
Described sending module is the location information report module that is positioned on the terminal.
Described sending module is the synchronization module that is positioned on the sip server.
The beneficial effect that the present invention produces is: break down at sip server, or when other parts network failures (for example exchange fault, part internet break down) take place, still can guarantee to realize between each terminal basic talk business.In corporate environment, can effectively utilize existing LIST SERVER, do not need to increase extra equipment, do not need to utilize the PSTN network yet, reduced the realization cost, also avoided the trouble on the line.
Description of drawings
The present invention is further described below in conjunction with drawings and Examples.
Fig. 1 is the schematic network structure that realizes the method for Internet phone-calling in the prior art behind the network failure;
Fig. 2 is the flow chart of a kind of embodiment of the method for realization Internet phone-calling behind the network failure of the present invention;
Fig. 3 is a schematic diagram of realizing setting up and upgrading in the method for Internet phone-calling a kind of method of terminal positional information table behind the network failure of the present invention;
Fig. 4 is a schematic diagram of realizing setting up and upgrading in the method for Internet phone-calling the another kind of method of terminal positional information table behind the network failure of the present invention;
Fig. 5 is the schematic diagram of a kind of embodiment of the device of realization Internet phone-calling behind the network failure of the present invention;
Fig. 6 is the schematic diagram of the another kind of embodiment of the device of realization Internet phone-calling behind the network failure of the present invention;
Fig. 7 is the schematic diagram that utilizes the embodiment of a kind of SIP phone networking of the present invention.
Embodiment
As shown in Figure 2, the method for realization Internet phone-calling may further comprise the steps behind the network failure of the present invention:
Step 201: all location information of terminals are set up a terminal positional information table, this terminal positional information table is kept on the special LIST SERVER, or store with alternate manners such as database, files;
Step 202: source terminal is initiated request to sip server, and is unreachable if network returns request as INVITE, and source terminal is the search purposes location information of terminals in the terminal positional information table of LIST SERVER or otherwise preservation;
The inaccessible information of request can be defined by ICMP (Internet Control Messages Protocol, Internet Control Message Protocol) agreement in this step;
Step 203: source terminal sends point-to-point session request according to the purpose location information of terminals that checks in the step 202 to the purpose terminal;
Step 204: the purpose terminal is replied after receiving the point-to-point session request that described source terminal sends, and source terminal is set up point-to-point dialogue after receiving answer.
In the above steps, setting up terminal positional information table, source terminal search purposes terminal positional information, source terminal sends to destination and sets up point-to-point session request and purpose terminal and make process such as answer to source terminal and can use LDAP (Lightweight Directory Access Protocol, Light Directory Access Protocol) agreement, also can use other agreement, as http protocol, HTTPS agreement, soap protocol and XCAP agreement etc., can also be by oneself definition agreement.Ldap protocol is preferable selection.
As shown in Figure 3, a kind of method of setting up and upgrading the location information of terminals table is, regularly its positional information sent to the LIST SERVER or the terminal positional information table of storage otherwise by terminal.In addition, also can send in real time, promptly when location information of terminals changed, initiatively the terminal positional information table to LIST SERVER or otherwise storage sent the positional information of upgrading.Process of transmitting can use ldap protocol, also can adopt other agreements.
As shown in Figure 4, the method of another kind of foundation and renewal location information of terminals table is, by sip server each location information of terminals of its acquisition being sent to the LIST SERVER or the terminal positional information table of storage otherwise, can be timed sending, also can be real-time transmission.Timed sending is that sip server just sends to each location information of terminals of its acquisition the LIST SERVER or the terminal positional information table of storage otherwise at regular intervals; Transmission in real time is when sip server finds to have location information of terminals to change, the terminal positional information table that each location information of terminals after it is obtained to upgrade sends to LIST SERVER or otherwise stores.This process of transmitting can use ldap protocol, also can adopt other agreements.
As shown in Figure 5, realize an embodiment of the device of Internet phone-calling behind the network failure, be made up of administration module 501, memory module 502, enquiry module 503, request module 504, location information report module 505 and timer 506, wherein enquiry module 503, request module 504, location information report module 505 and timer 506 are located on the terminal.
Administration module 501 is used to receive each location information of terminals, sets up the terminal positional information table, and this terminal positional information table is kept in the memory module 502;
Memory module 502 links to each other with administration module 501, is used for the terminal positional information table that memory management module 501 is set up, and memory module can be that LIST SERVER, database, file or other have the module of memory function;
Enquiry module 503 links to each other with administration module 501, is used for request management module 501 from terminal positional information table search purposes location information of terminals;
Request module 504 links to each other with enquiry module 503, and the purpose terminal positional information that is used for checking in according to enquiry module 503 is set up point-to-point dialogue to the purpose terminal request.
Location information report module 505 links to each other with administration module 501, is used for sending location information of terminals to administration module 501.
Timer 506 links to each other with location information report module 505, is used to location information report module 505 to send terminal positional information and sets a time cycle.
As shown in Figure 6, realize another embodiment of the device of Internet phone-calling behind the network failure, form by administration module 601, memory module 602, enquiry module 603, request module 604, synchronization module 605 and timer 606, wherein enquiry module 603 and request module 604 are arranged on the terminal, and synchronization module 605 and timer 606 are located on the sip server.
As shown in Figure 7, be provided with LIST SERVER 701 and sip server 702 in the network simultaneously, also have two terminals in addition.At first, terminal 1 and terminal 2 704 send to LIST SERVER 701 with the positional information of oneself respectively, are generated a terminal positional information table and are stored by LIST SERVER.Under the normal condition, pass through sip server 702 communications between terminal 1 and the terminal 2 704.When sip server 702 breaks down, as the terminal 1 of source terminal when sip server sends request, sip server 702 returns the inaccessible information of request, terminal 1 sends request to LIST SERVER 701 after receiving this information, request obtains the positional information as the terminal 2 704 of purpose terminal, LIST SERVER 701 inquires the positional information of terminal 2 704 and feeds back to terminal 1 from the terminal positional information table, terminal 1 is set up the request of point-to-point dialogue to its transmission according to the positional information of terminal 2 704, terminal 2 704 replies to terminal 1 after receiving this request, and terminal 1 is set up point-to-point dialogue after receiving answer.
The above; only be the preferable embodiment of the present invention, protection scope of the present invention is not limited thereto, and those skilled in the art are in the technical scope that the present invention discloses; any variation or the replacement that can expect easily all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection range of claim.
Claims (9)
1, realizes the method for Internet phone-calling behind a kind of network failure, it is characterized in that, set up a terminal positional information table, behind the generation network failure, source terminal is inquired about from the terminal positional information table and is obtained the purpose location information of terminals, directly initiates point-to-point dialogue to the purpose terminal.
2, realize the method for Internet phone-calling behind the network failure according to claim 1, it is characterized in that described method specifically comprises:
A. all location information of terminals are set up a terminal positional information table;
B. source terminal is initiated request to sip server, and network returns request when unreachable, search purposes location information of terminals from described terminal positional information table;
C. source terminal sends point-to-point session request according to the purpose location information of terminals that checks in to the purpose terminal;
D. the purpose terminal is replied after receiving the point-to-point session request that described source terminal sends, and source terminal is set up point-to-point dialogue after receiving answer.
3, realize the method for Internet phone-calling behind the network failure according to claim 2, it is characterized in that the described terminal positional information table that will set up in the described steps A is kept on the LIST SERVER or in the database.
4, realize the method for Internet phone-calling behind the network failure according to claim 2, it is characterized in that, in the described steps A, terminal is regularly added the positional information of oneself in the terminal positional information table, if had this location information of terminals in the terminal positional information table, then upgraded this positional information.
5, realize the method for Internet phone-calling behind the network failure according to claim 2, it is characterized in that, in the described steps A, regularly or in real time the location information of terminals of its acquisition is sent to described terminal positional information table by described sip server.
6, realize the device of Internet phone-calling behind a kind of network failure, it is characterized in that, comprising:
Administration module is used to receive each location information of terminals, sets up the terminal positional information table, and this terminal positional information table is kept in the memory module;
Memory module links to each other with administration module, is used for the terminal positional information table that memory management module is set up;
Enquiry module links to each other with administration module, is used for request management module from terminal positional information table search purposes location information of terminals;
Request module links to each other with enquiry module, and the purpose terminal positional information that is used for checking in according to enquiry module is set up point-to-point dialogue to the purpose terminal request;
Sending module links to each other with administration module, is used for sending location information of terminals to administration module.
7, realize the device of Internet phone-calling behind the network failure according to claim 6, it is characterized in that described device also comprises timer, link to each other, be used to sending module to send terminal positional information and set a time cycle with sending module.
8, according to the device of realizing Internet phone-calling behind claim 6 or the 7 described network failures, it is characterized in that described sending module is the location information report module that is positioned on the terminal.
9, according to the device of realizing Internet phone-calling behind claim 6 or the 7 described network failures, it is characterized in that described sending module is the synchronization module that is positioned on the sip server.
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| Application Number | Priority Date | Filing Date | Title |
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| CNB2006101521393A CN100438448C (en) | 2006-09-14 | 2006-09-14 | Method and device for implementing network call after network failure |
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| CNB2006101521393A CN100438448C (en) | 2006-09-14 | 2006-09-14 | Method and device for implementing network call after network failure |
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| CN1960289A true CN1960289A (en) | 2007-05-09 |
| CN100438448C CN100438448C (en) | 2008-11-26 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101442708B (en) * | 2007-11-23 | 2010-05-26 | 佛山市顺德区顺达电脑厂有限公司 | Method for obtaining point-to-point position information based on session initial protocol |
| CN102420823A (en) * | 2011-11-29 | 2012-04-18 | 太仓市同维电子有限公司 | Simplified-session initiation protocol (SIP)-based simplified intelligent monitoring system and positioning and monitoring methods |
| CN102821216A (en) * | 2011-06-07 | 2012-12-12 | 鸿富锦精密工业（深圳）有限公司 | Terminal equipment and method of terminal equipment for exchanging internet protocol voice signaling |
| US8902880B2 (en) | 2011-06-07 | 2014-12-02 | Hon Hai Precision Industry Co., Ltd. | Local terminal device and method for exchanging VoIP signaling |
| CN104954592A (en) * | 2014-03-28 | 2015-09-30 | 鸿富锦精密工业（深圳）有限公司 | Communication method and device for VOIP |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1190079C (en) * | 2002-03-29 | 2005-02-16 | 武汉邮电科学研究院 | Soft exchange based video conference system multipoint controller |
| KR20060117901A (en) * | 2003-07-30 | 2006-11-17 | 소프트뱅크비비 가부시키가이샤 | Communication system, call connection server, terminal apparatus and communication method |
| DE60330350D1 (en) * | 2003-10-30 | 2010-01-14 | Hewlett Packard Development Co | Communication method and device |
| CN100463538C (en) * | 2003-11-27 | 2009-02-18 | 中兴通讯股份有限公司 | Method and system for improving reliability of soft switch using off-site backup |
| US20050141042A1 (en) * | 2003-12-25 | 2005-06-30 | Murata Kikai Kabushiki Kaisha | Communication terminal device |
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2006
- 2006-09-14 CN CNB2006101521393A patent/CN100438448C/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101442708B (en) * | 2007-11-23 | 2010-05-26 | 佛山市顺德区顺达电脑厂有限公司 | Method for obtaining point-to-point position information based on session initial protocol |
| CN102821216A (en) * | 2011-06-07 | 2012-12-12 | 鸿富锦精密工业（深圳）有限公司 | Terminal equipment and method of terminal equipment for exchanging internet protocol voice signaling |
| US8902880B2 (en) | 2011-06-07 | 2014-12-02 | Hon Hai Precision Industry Co., Ltd. | Local terminal device and method for exchanging VoIP signaling |
| CN102420823A (en) * | 2011-11-29 | 2012-04-18 | 太仓市同维电子有限公司 | Simplified-session initiation protocol (SIP)-based simplified intelligent monitoring system and positioning and monitoring methods |
| CN104954592A (en) * | 2014-03-28 | 2015-09-30 | 鸿富锦精密工业（深圳）有限公司 | Communication method and device for VOIP |
| CN104954592B (en) * | 2014-03-28 | 2017-10-27 | 鸿富锦精密工业（深圳）有限公司 | The communication means and device of the networking telephone |
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| Publication number | Publication date |
|---|---|
| CN100438448C (en) | 2008-11-26 |
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