CN102131005B - Method, device and system for implementing hotline service in internet protocol (IP) network - Google Patents
Method, device and system for implementing hotline service in internet protocol (IP) network Download PDFInfo
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- CN102131005B CN102131005B CN201010582840.5A CN201010582840A CN102131005B CN 102131005 B CN102131005 B CN 102131005B CN 201010582840 A CN201010582840 A CN 201010582840A CN 102131005 B CN102131005 B CN 102131005B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M7/00—Arrangements for interconnection between switching centres
- H04M7/006—Networks other than PSTN/ISDN providing telephone service, e.g. Voice over Internet Protocol (VoIP), including next generation networks with a packet-switched transport layer
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M3/00—Automatic or semi-automatic exchanges
- H04M3/08—Indicating faults in circuits or apparatus
- H04M3/14—Signalling existence of persistent "off-hook" condition
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- Telephonic Communication Services (AREA)
Abstract
The invention provides a method, device and system for implementing hotline service in an internet protocol (IP) network. The IP network comprises a first access gateway and a second access gateway, wherein the first access gateway is connected with a first user terminal, and the second access gateway is connected with a second user terminal. When the first access gateway detects that the first user terminal is off-hook, a first message carrying calling off-hook event codes is sent to the second access gateway by an IP semipermanent channel, so that the second access gateway is used for identifying events which are borne by the first message in accordance with the correspondence between the event codes and events and then sending a bell signal to the second user terminal; after the first access gateway receives information that the second access gateway rings successfully, the first access gateway sends a ring-back tone signal to the first user terminal; and when the first access gateway receives a second message carrying called off-hook event codes from the second access gateway, the first access gateway identifies events which are borne by the second message, and stops sending the ring-back tone signal to the first user terminal as well as causes the first user terminal and the second user terminal to enter into a call state.
Description
Technical field
The present invention relates to the communications field, particularly relate to hot line service implementation method, device and system in a kind of IP network.
Background technology
Hot line service, is also block telephone, is a kind of private line service realizing communicating between two fixing user terminals.In application in early days, two designated user A and B are half-permanent connection relation by software set, and when party A-subscriber's off-hook, the phone of party B-subscriber can ring, A, B call after party B-subscriber's off-hook.At NGN(Next Generation Network, next generation network) and IMS(IP Multimedia Subsystem, IP Multimedia System) under networking mode, the application mode of hot line service is had some change, no longer between A, B, set half-permanent connection, but hot line service is triggered after party A-subscriber's off-hook, soft switch or SIP(Session Initiation Protocol, Session initiation Protocol) AG(Access Gateway, IAD) the automatic number sending B, the phone ring of party B-subscriber.
Usual hot line service can be used for the communication service of the point-to-point between the different website of the railway system, and traditional mode adopts solid line to link on the concentrator of two websites, as shown in Figure 1, concentrator is furnished with and always coils altogether and be divided into dish.Altogether total dish can produce ringing-current, and being divided into dish has bell flowing detecting circuit and ringing circuit, and always coiling and be divided into dish altogether needs to use in pairs, sending ringing-current to being divided into dish altogether, being divided into dish and detecting that ringing-current starts ring after total dish off-hook, and send ring-back tone to total hair updo altogether.
Traditional hot line service is carried by E1 link, usually adopts V5 agreement to carry two OLT(Optical Line Terminal, optical line terminal) between instruction.But As time goes on, TDM(Time Division Multiplexer, time division multiplexing) switch reaches design service life soon, PSTN(Public Switched Telephone Network, PSTN) network IPization is transformed into a kind of inexorable trend, after having transformed, E1 link will not exist, and how traditional hot line service realizes becoming a kind of urgent problem on ip networks.
Summary of the invention
One embodiment of the invention provides the implementation method of hot line service in a kind of IP network, described IP network comprises the first IAD and the second IAD being connected the second user terminal that connect first user end, be provided with the semipermanent passage of IP between described first IAD and described second IAD, the semipermanent passage of described IP from the first IAD to the state in the second IAD direction for not only to send out but also receive; Described method comprises:
When described first IAD detects described first user terminal off-hook, send to described second IAD the first message carrying caller off-hook event coding, to make the described second IAD event that the first message carries according to the corresponding relation identification of event code and event and to send bell signal to described second user terminal by the semipermanent passage of described IP;
Described first IAD sends it back ring signal to described first user terminal after receiving the message of the second IAD success ring;
When described first IAD by the semipermanent channel reception of described IP to from described second IAD carry called off-hook event coding the second message time, the event that second message carries according to the corresponding relation identification of event code and event, stop sending it back ring signal to described first user terminal, and make described first user terminal and described second user terminal enter talking state.
One embodiment of the invention provides the IAD in a kind of IP network, comprising:
User-side port, for connecting first user terminal;
Network-side port, for passing through IP semipermanent expanding channels second IAD;
Detecting unit, for when described first user terminal off-hook being detected, sends to described second IAD the first message carrying caller off-hook event coding by the semipermanent passage of described IP;
Bell sound administrative unit, for after the message being received described second IAD success ring by network-side port, sends it back ring signal by described user-side port to described first user terminal;
Information analysis unit, for by the semipermanent channel reception of described IP to from described second IAD carry called off-hook event coding the second message time, the event that second message carries according to the corresponding relation identification of event code and event, stop sending it back ring signal to described first user terminal, and make described first user terminal and described second user terminal enter talking state.
One embodiment of the invention provides the system realizing hot line service in a kind of IP network, comprise the first IAD and the second IAD being connected the second user terminal that connect first user terminal, described first IAD is connected by the semipermanent passage of IP with described second IAD, the semipermanent passage of described IP from the first IAD to the state in the second IAD direction for not only to send out but also receive;
Described first IAD, for when described first user terminal off-hook being detected, sends to described second IAD the first message carrying caller off-hook event coding by the semipermanent passage of described IP; When receiving successfully ALERTING message, send it back ring signal to described first user terminal; When receive from described second IAD carry called off-hook event coding the second message time, the event that second message carries according to the corresponding relation identification of event code and event, stop sending it back ring signal to described first user terminal, and make described first user terminal and described second user terminal enter talking state;
Described second IAD, the event carried for the first message according to the corresponding relation identification of event code and event also sends bell signal to described second user terminal, sends successful ALERTING message by the semipermanent passage of described IP to described first IAD; When described second user terminal off-hook being detected, send the second message by the semipermanent passage of described IP to described first IAD.
The methods, devices and systems that the embodiment of the present invention provides, can realize hot line service in an ip network, versatility is relatively good, also than being easier to operation.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the networking structure figure of existing hot line service;
The interaction figure of the method that Fig. 2 provides for the embodiment of the present invention;
The schematic diagram of the framework of the IAD that Fig. 3 provides for the embodiment of the present invention;
The Organization Chart of the system that Fig. 4 provides for the embodiment of the present invention.
Specific embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, be clearly and completely described the technical scheme in the embodiment of the present invention, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
One embodiment of the invention provides the implementation method of the hot line service in a kind of IP network, as shown in Figure 2, described IP network comprises user terminal 20(first user terminal), IAD 22(first IAD), IAD 24(second IAD) and user terminal 26(second user terminal), user terminal 20 is connected with IAD 22, and IAD 24 is connected with user terminal 26.The method that the present embodiment provides needs between IAD 22 and IAD 24, set up the semipermanent passage of IP, it can be a pre-configured semipermanent passage of IP, concrete method can be the parameter of being specified IAD 22 and IAD 24 by order line or network management interface, as IP address, UDP(User Datagram Protocol, User Datagram Protocol) port numbers and code/decode type etc.
The method that the present embodiment provides as shown in Figure 2, comprising:
Step 200, when IAD 22 detects user terminal 20 off-hook, sends the first message carrying caller off-hook event coding to IAD 24.
IAD 22 is preserved the corresponding relation of event code and event, can be as shown in table 1,
| Event | Coding |
| Caller off-hook | 23 |
| Called off-hook | 24 |
| On-hook | 25 |
| Ring | 26 |
| Ring-back | 27 |
When after user terminal 20 off-hook, IAD 22 can detect caller off-hook event, corresponding relation according to event code and event obtains coding corresponding to caller off-hook event, sends to IAD 24 by the mode expanding 2833 agreements or self-defining character by carrying coding corresponding to caller off-hook event.
If the semipermanent passage of IP set up in advance is not not only receive but also send out from IAD 22 to the state in IAD 24 direction, then the semipermanent passage of IP is set from IAD 22 to the state in IAD 24 direction for not only to receive but also send out.
Step 202, after IAD 24 receives the first message, identifies and the event that the first message carries sends ringing tone signal to user terminal 26.
IAD 24 is also preserved the corresponding relation of event code and event, consistent with the corresponding relation on IAD 22.
After IAD 24 receives the first message, when determining that the event of the first message bearing is caller off-hook event according to the event code of carrying in the first message, send ring back tone to user terminal 26, informing user terminal 26 has phone incoming call.
IAD 24 can send by expansion 2833 agreement or self-defining character the message carrying ring coding to user terminal 26, after user terminal 26 receives message, play the tinkle of bells, prompting user has phone incoming call.
When the event that IAD 24 carries in identification first message is caller off-hook event, if the semipermanent passage of IP set up in advance is not not only receive but also send out from IAD 24 to the state in IAD 22 direction, then the semipermanent passage of IP is set from IAD 24 to the state in IAD 22 direction for not only to receive but also send out.
IAD 24 can pass through GE(Gigabit Ethernet, gigabit Ethernet)/FE(Fast Ethernet, Fast Ethernet) interface first message.
Step 204, IAD 24 sends the message of successful ring to IAD 22.
After IAD 22 receives successfully ALERTING message, send it back ring signal to user terminal 20, the mode of transmission can send by expansion 2833 agreement or self-defining character the message carrying ring-back tone coding to user terminal 20.
Step 206, when IAD 24 detects the called off-hook event of user terminal 26, sends the second message carrying called off-hook event coding to IAD 22.
IAD 24 can send the second message by GE/FE interface.
Step 208, IAD 22 stops sending it back ring signal.
After receiving the second message, when IAD 22 is called off-hook event according to the event of corresponding relation identification second message bearing of event code and event, stop sending it back ring signal.
After step above, between user terminal 20 and user terminal 26, just enter talking state.
When after user terminal 26 on-hook, then IAD 24 can detect onhook event, then described method also comprises:
Step 210, after IAD 24 detects user terminal on-hook, sends the 3rd message carrying onhook event coding to IAD 22.
IAD 24 can also arrange the semipermanent passage of IP and not send out for only receiving from IAD 24 to the state in IAD 22 direction.
After IAD 22 receives the 3rd message by GE/FE interface, identify that the event of the 3rd message bearing is onhook event, then send busy-back signal to user terminal 20, the semipermanent passage of IP can also be set and not send out for only receiving from IAD 22 to the state in IAD 24 direction.
User terminal 20 on-hook, end of conversation.
The first message in the present embodiment, the second message and the 3rd message can be adopt UDP, TCP(Transmission Control Protocol transmission control protocol) or SCTP(Stream Control Transmission Protocol, SCTP) etc. the IP message of agreement carrying.
The method that the present embodiment provides, can realize hot line service in an ip network, can not need the participation of equipment of the core network in the process realized, flexibly easily operation.
One embodiment of the invention provides the IAD in a kind of IP network, as shown in Figure 3, comprising:
User-side port 300, for connecting user terminal 20(first user terminal).
Network-side port 302, for passing through IP semipermanent expanding channels IAD 24(second IAD).Network Side Interface 302 can be GE interface or FE interface.
Detecting unit 304, during for user terminal 20 off-hook being detected, sends the first message carrying caller off-hook event coding to IAD 24 by the semipermanent passage of IP.
Bell sound administrative unit 306, for after the message receiving the successful ring of IAD 24, sends it back ring signal by user-side port 300 to user terminal 20.
Information analysis unit 308, for by the semipermanent channel reception of IP to from IAD 24 carry called off-hook event coding the second message time, according to the event that corresponding relation identification second message of event code and event carries, stop sending it back ring signal to user terminal 20, and make user terminal 20 and user terminal 26 enter talking state, the mode making both sides enter talking state can be put conversation state etc. by software to user port transmitting order to lower levels, and concrete mode those of ordinary skill in the art should know.
Information analysis unit 308 can also be used for receive from IAD 24 carry onhook event coding the 3rd message time, when the event that 3rd message carries according to the corresponding relation identification of event code and event is onhook event, send busy-back signal to user terminal 20.
The IAD that the present embodiment provides can also comprise channel management unit 310, for managing the state in the semipermanent passage of IP 24 directions from local terminal to IAD.
Can be specifically, when user terminal 20 off-hook being detected, if the semipermanent passage of IP is not not only receive but also send out from IAD 22 toward the state in IAD 24 direction, then the semipermanent passage of IP is set from IAD 22 toward the state in IAD 24 direction for not only to receive but also send out.After sending busy-back signal to user terminal 20, the semipermanent passage of IP is set and does not send out for only receiving from IAD 22 toward the state in IAD 24 direction.
The IAD that the present embodiment provides, can realize hot line service in an ip network, and in the process realized, can not need the participation of equipment of the core network, versatility is relatively good, also than being easier to operation.
One embodiment of the invention provides the system realizing hot line service in a kind of IP network, as shown in Figure 4, comprise user terminal 20, IAD 22, IAD 24 and user terminal 26, wherein, IAD 22 is connected by the semipermanent passage 40 of IP with IAD 24.
IAD 20, for when user terminal 20 off-hook being detected, sends the first message carrying caller off-hook event coding to IAD 24 by the semipermanent passage 40 of IP; When receiving successfully ALERTING message, send it back ring signal to user terminal 20; When receive from IAD 24 carry called off-hook event coding the second message time, according to the event that corresponding relation identification second message of event code and event carries, stop sending it back ring signal to user terminal 20, and make user terminal 20 and user terminal 26 enter talking state;
IAD 24, the event carried for the first message according to the corresponding relation identification of event code and event also sends bell signal to user terminal 26, sends successful ALERTING message by the semipermanent passage of IP 40 to IAD 22; When user terminal 20 off-hook being detected, send the second message by the semipermanent passage 40 of IP to IAD 22.
IAD 22 also for arranging the semipermanent passage 40 of described IP from IAD 22 toward the state in the second IAD 24 direction for not only to send out but also receive before described first message of transmission.
IAD 22 also for receive from IAD 24 carry onhook event coding the 3rd message time, when the event that 3rd message carries according to the corresponding relation identification of event code and event is onhook event, send busy-back signal to user terminal 20.
The system that the present embodiment provides, can realize hot line service in an ip network, and in the process realized, can not need the participation of equipment of the core network, versatility is relatively good, also than being easier to operation.
One of ordinary skill in the art will appreciate that all or part of step realized in above-described embodiment method is that the hardware that can carry out instruction relevant by program completes, described program can be stored in a computer-readable recording medium, as ROM/RAM, magnetic disc or CD etc.
The above; be only the specific embodiment of the present invention; but protection scope of the present invention is not limited thereto; anyly be familiar with those skilled in the art in the technical scope that the present invention discloses; change can be expected easily or replace; all should be encompassed within protection scope of the present invention, therefore, protection scope of the present invention should described be as the criterion with the protection range of claim.
Claims (9)
1. the hot line service implementation method in an IP network, it is characterized in that, described IP network comprises the first IAD and the second IAD being connected the second user terminal that connect first user end, be provided with the semipermanent passage of IP between described first IAD and described second IAD, the semipermanent passage of described IP from the first IAD to the state in the second IAD direction for not only to send out but also receive; Described method comprises:
When described first IAD detects described first user terminal off-hook, send to described second IAD the first message carrying caller off-hook event coding, to make the described second IAD event that the first message carries according to the corresponding relation identification of event code and event and to send bell signal to described second user terminal by the semipermanent passage of described IP;
Described first IAD sends it back ring signal to described first user terminal after receiving the message of the second IAD success ring;
When described first IAD by the semipermanent channel reception of described IP to from described second IAD carry called off-hook event coding the second message time, the event that second message carries according to the corresponding relation identification of event code and event, stop sending it back ring signal to described first user terminal, and make described first user terminal and described second user terminal enter talking state
Wherein, described first message and the second message carry event code by the mode of expansion 2833 agreement or self-defining character.
2. method according to claim 1, is characterized in that, described first IAD was also comprised before described second IAD sends the first message carrying caller off-hook event coding by the semipermanent passage of described IP:
The semipermanent passage of described IP is set from the first IAD toward the state in the second IAD direction for not only to send out but also receive.
3. method according to claim 1, is characterized in that, described first user terminal and described second user terminal also comprise after entering talking state:
When receive from described second IAD carry onhook event coding the 3rd message time, when the described first IAD event that the 3rd message carries according to the corresponding relation identification of event code and event is onhook event, send busy-back signal to described first user terminal.
4. method according to claim 3, is characterized in that, described first IAD also comprises after described first user terminal sends busy-back signal:
Arrange the semipermanent passage of described IP not send out from the first IAD toward the state in the second IAD direction for only receiving.
5. the IAD in IP network, is characterized in that, comprising:
User-side port, for connecting first user terminal;
Network-side port, for passing through IP semipermanent expanding channels second IAD;
Detecting unit, for when described first user terminal off-hook being detected, sends to described second IAD the first message carrying caller off-hook event coding by the semipermanent passage of described IP;
Bell sound administrative unit, for after the message being received described second IAD success ring by network-side port, sends it back ring signal by described user-side port to described first user terminal;
Information analysis unit, for by the semipermanent channel reception of described IP to from described second IAD carry called off-hook event coding the second message time, the event that second message carries according to the corresponding relation identification of event code and event, stop sending it back ring signal to described first user terminal, and making described first user terminal and the second user terminal enter talking state, described second user terminal is connected with described second IAD;
Wherein, described first message and the second message carry event code by the mode of expansion 2833 agreement or self-defining character.
6. IAD according to claim 5, is characterized in that, described network-side port is gigabit Ethernet GE interface or Fast Ethernet FE interface.
7. in an IP network, realize the system of hot line service, it is characterized in that, comprise the first IAD and the second IAD being connected the second user terminal that connect first user terminal, described first IAD is connected by the semipermanent passage of IP with described second IAD, the semipermanent passage of described IP from the first IAD to the state in the second IAD direction for not only to send out but also receive;
Described first IAD, for when described first user terminal off-hook being detected, sends to described second IAD the first message carrying caller off-hook event coding by the semipermanent passage of described IP; When receiving successfully ALERTING message, send it back ring signal to described first user terminal; When receive from described second IAD carry called off-hook event coding the second message time, the event that second message carries according to the corresponding relation identification of event code and event, stop sending it back ring signal to described first user terminal, and make described first user terminal and described second user terminal enter talking state;
Described second IAD, the event carried for the first message according to the corresponding relation identification of event code and event also sends bell signal to described second user terminal, sends successful ALERTING message by the semipermanent passage of described IP to described first IAD; When described second user terminal off-hook being detected, send the second message by the semipermanent passage of described IP to described first IAD;
Wherein, described first message and the second message carry event code by the mode of expansion 2833 agreement or self-defining character.
8. system according to claim 7, is characterized in that, described first IAD also for arranging the semipermanent passage of described IP from the first IAD toward the state in the second IAD direction for not only to send out but also receive before described first message of transmission.
9. the system according to claim 7 or 8, it is characterized in that, described first IAD also for receive from described second IAD carry onhook event coding the 3rd message time, when the event that 3rd message carries according to the corresponding relation identification of event code and event is onhook event, send busy-back signal to described first user terminal.
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| CN101374277A (en) * | 2008-10-08 | 2009-02-25 | 中兴通讯股份有限公司 | Method for implementing associated channel signaling of NGN system |
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| CN100550936C (en) * | 2005-07-21 | 2009-10-14 | 华为技术有限公司 | A kind of public telephone exchange network simulation service implementation method |
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| CN1527550A (en) * | 2003-03-06 | 2004-09-08 | 华为技术有限公司 | IP access method and system of phonetic service |
| CN101110685A (en) * | 2006-07-18 | 2008-01-23 | 中兴通讯股份有限公司 | Method for implementing multi-point conference using endpoint equipment without supporting gatekeeper |
| CN101374277A (en) * | 2008-10-08 | 2009-02-25 | 中兴通讯股份有限公司 | Method for implementing associated channel signaling of NGN system |
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