CN101166121B - A call testing method and device for high traffic - Google Patents
A call testing method and device for high traffic Download PDFInfo
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- CN101166121B CN101166121B CN2006101138404A CN200610113840A CN101166121B CN 101166121 B CN101166121 B CN 101166121B CN 2006101138404 A CN2006101138404 A CN 2006101138404A CN 200610113840 A CN200610113840 A CN 200610113840A CN 101166121 B CN101166121 B CN 101166121B
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Abstract
This invention discloses a call test device and a method, in which, the call test device includes: a data configuring unit used in configuring data for the call test device and a gateway to be tested, and the configured data include address, port, name of the end point, a call timer and call parameters used by the protocol between the call test device and the gateway to register the gateway or set up SCTP couple with the gateway, call and test the gateway, transmit call messages to it to analyze and process information returned by it.
Description
Technical field
The present invention relates to communication field, be specifically related to Tandem Gateway in the telecommunications next generation network and SGW equipment are carried out the method and apparatus of Bulk Call call testing.
Background technology
Along with development of telecom technology, communication network is beginning by traditional programme control circut switching network to next generation network (NGN) conversion based on the IP packet switch.Because telecom operators have set up a large amount of legacy circuit-switched networks,, the situation that considerable time is in circuit switching and packet switch two net coexistences will be had in order to protect investment and to seamlessly transit.And Tandem Gateway (TG-Trunk Gateway) is exactly the marginal layer equipment that is connected these two kinds of networks with SGW (SG--Signaling Gateway).TG is used for the RTP Media Stream of the sound circuit signal of circuit network side and IP network side is changed mutually, and the signaling that SG then surveys the signaling and the IP network of circuit network side transmits (SIGTRAN) protocol package is changeed mutually.The design capacity of general Tandem Gateway is bigger, and its hard intensity call testing is quite important, generally uses commercial calling set, as Abacus, surveys simulation for SPC switching at circuit and uses trunk line to link to each other with gateway, carries out jumbo call testing.When test, also need the Softswitch cooperation of IP network side to finish call testing jointly, so test environment dispose more complicated, cost is higher.And existing gateway equipment is divided into TG, SG and the integrated gateway of TG/SG, and existing equipment or device can't directly be tested above-mentioned 3 kinds of equipment flexibly.
Summary of the invention
The purpose of this invention is to provide a kind of call test method and device,, big capacity relaying/SGW is carried out the call testing of Bulk Call with better simply test environment equipment requirements and lower cost.
At above-mentioned purpose, a kind of call testing device provided by the present invention is used for relaying/SGW is carried out the call testing of Bulk Call, comprising:
The data configuration unit is used for described call testing device and gateway to be measured are carried out data configuration, comprising: the address of configuration call testing apparatus and port are address and the port that the agreement of Softswitch is used; Dispose the address and the port of the agreement use of gateway to be measured; And configuration destination node title, call out timer, calling parameter;
Call Control Unit is used to treat survey grid and closes and to register or set up the SCTP coupling with gateway to be measured, and treats survey grid and close and carry out call testing, sends message related to calls to gateway to be measured, and the message returned of analyzing and processing gateway to be measured.
Wherein, described Call Control Unit comprises: the Tandem Gateway control unit is used for Tandem Gateway to be measured is registered; And the SGW control unit, be used for setting up the SCTP coupling with SGW to be measured.
Wherein, described data configuration unit comprises timer units, and being used to each to call out speech channel provides the timer registration separately and trigger function.
Wherein, described data configuration unit pack includes network communication unit is used to set up udp port, SCTP coupling, and transmission interface is provided and triggers the reception incident.
Wherein, described data configuration unit comprises the protocol encoding and decoding unit, be used to provide to H.248 with the codec functions of SIGTRAN.
At above-mentioned purpose, a kind of call test method provided by the present invention is used to use call testing device that relaying/SGW is carried out the call testing of Bulk Call, comprises step:
Step 2, treat survey grid and close and to register or set up the SCTP coupling with gateway to be measured;
Step 3, treat survey grid and close and to carry out call testing, described call testing device sends message related to calls to gateway to be measured, and the message returned of analyzing and processing gateway to be measured.
Wherein, in described step 2, described gateway to be measured comprises Tandem Gateway and/or SGW, wherein Tandem Gateway to be measured is registered, and is set up the SCTP coupling with SGW to be measured.
Wherein, in described step 3, use Tandem Gateway control unit and SGW control unit to treat the survey grid pass and carry out call testing, comprising separately Tandem Gateway being carried out call testing, separately SGW is carried out call testing and Tandem Gateway and SGW are carried out the simultaneous call test.
Wherein, describedly separately Tandem Gateway is carried out call testing and comprises step:
Send the caller speech channel to Tandem Gateway and load resource request;
The answer message that Tandem Gateway is replied is decoded, obtain call context, caller RTP destination node title and caller SDP and describe;
Send called speech channel to Tandem Gateway and load resource request;
The answer message that Tandem Gateway is replied is decoded, obtain called RTP destination node title and called SDP and describe;
According to called SDP the caller SDP description request of revising that sends is described;
After receiving that the request of modification is replied, trigger the ring timer, and send the caller local media transmitting-receiving mode request of revising;
After receiving that Tandem Gateway is normally replied message, enter talking state;
Trigger duration of call timer, send caller resource release request and called resource release request;
Receive that normal caller discharges answer message and message is replied in called release, start the duration of a call timer, caller speech channel and called speech channel are in idle condition, prepare call flow next time.
Wherein, the described caller speech channel of separately SGW being carried out call testing comprises step:
Receive the duration of a call timer event, send IAM message;
After receiving ACM message, enter the ANM state of waiting for;
Receive ANM, enter talking state, start duration of call timer;
Duration of call timer triggers, and sends REL message;
After SGW was replied RLC message, speech channel entered idle condition, started the duration of a call timer, prepared to call out next time.
Wherein, the described called speech channel of separately SGW being carried out call testing comprises step:
Receive IAM message in idle condition, send ACM message, and start the ring timer;
The ring timer triggers, and sends ANM, enters talking state;
Receive REL message, reply RLC message, speech channel recovers idle condition.
Wherein, the described caller speech channel that Tandem Gateway and SGW are carried out the simultaneous call test comprises step:
Trigger the duration of a call timer, described SGW control unit sends inter-process messages to described Tandem Gateway control unit, and notice loads corresponding caller traffic resource;
Described Tandem Gateway control unit is notified described SGW control unit loaded after receiving that gateway loads recovery message, and described SGW control unit sends IAM message;
After described SGW control unit is received ACM message, notify described Tandem Gateway control unit to revise caller distant end media SDP and describe;
Described Tandem Gateway control unit notifies described SGW control unit to revise successfully after receiving that gateway is revised answer message;
Described SGW control unit notifies described Tandem Gateway control unit to revise caller local media transmitting-receiving mode after waiting under the ANM state, receiving ANM;
Described Tandem Gateway control unit is notified described SGW control unit after receiving that gateway modification local media transmitting-receiving mode is replied, and enters talking state, and starts duration of call timer;
Duration of call timer triggers, and described SGW control unit notifies described Tandem Gateway control unit to discharge corresponding caller traffic resource;
After the caller resource successfully discharged, described Tandem Gateway control unit speech channel recovered idle condition, and notifies described SGW control unit;
Described SGW control unit is notified, sends REL message, receive that RLC replys message after, speech channel recovers idle condition, prepares to call out next time.
Wherein, the described called speech channel that Tandem Gateway and SGW are carried out the simultaneous call test comprises step:
The called speech channel state of described SGW control unit and described Tandem Gateway control unit begins to be the free time;
After described SGW control unit is received IAM message, notify described Tandem Gateway control unit to load corresponding called traffic resource;
After described Tandem Gateway control unit notified described SGW control unit to load the resource success, described SGW control unit sent ACM message, and started the ring timer;
The ring timer triggers, and described SGW control unit sends ANM, enters talking state;
Described SGW control unit notifies described Tandem Gateway control unit to discharge corresponding called traffic resource after talking state is received REL message;
Described Tandem Gateway control unit is notified described SGW control unit to discharge successfully, and is entered idle condition after receiving that gateway discharges answer message;
Described SGW control unit sends RLC message, and called speech channel enters idle condition, and starts the duration of a call timer, prepares to call out next time.
A kind of call testing device of the present invention and method are owing to simulated the partial function of Softswitch, and by using the relaying self-loop line of gateway circuit net side, omitted the switching equipment of IP network side and circuit network side fully, only need testing apparatus and gateway to be measured to form test environment, environment configurations is very rapidly simple, and testing cost also reduces greatly; Because use the universal PC platform, cost is significantly less than special test equipment, easily use multiple pc simultaneously to the gateway test, strengthen message throughput; Two control units of TG that comprises in the call testing device provided by the present invention and SG can use separately to be tested separately the TG of gateway or SG part; Also can use simultaneously,, simulate complete call flow, gateway is carried out comprehensive call testing test by inter-process messages.
Description of drawings
Fig. 1 is Test Networking figure;
Fig. 2 is a flow chart of testing TG separately;
Fig. 3 a is a caller speech channel flow chart of testing SG separately;
Fig. 3 b is a called speech channel flow chart of testing SG separately;
Fig. 4 is to SG/TG synchronism detection caller speech channel flow chart;
Fig. 5 is to the called speech channel flow chart of SG/TG synchronism detection.
Embodiment
Next, specifically describe the specific embodiment of the present invention in conjunction with the accompanying drawings.
Call testing device of the present invention can adopt general PC platform, the simulation Softswitch H.248 and SIGTRAN, in call testing, substitute actual Softswitch, carry out the high capacity call test at IP network side control big capacity relaying/SGW to be measured.In test, just can save Softswitch like this, and can adopt self-loop line,, thereby omit stored-program control exchange, make the configuration of test environment very simple the signaling loopback in the circuit network side.
Fig. 1 is the Test Networking figure of call testing device of the present invention, comprising 3 kinds of Test Networkings, is respectively to test TG separately, test SG or joint test TG+SG separately.Wherein on the TG/SG gateway gateway controller is configured to the employed address port of analogue means, gateway circuit net side uses self-loop line to connect.As shown in Figure 1, H.248/SIGTRAN Bulk Call call testing device of the present invention mainly is made up of 2 parts, is respectively data configuration unit 1 and Call Control Unit 2.Data configuration unit 1 is used for configuration data, comprise the IP address of H.248 using with SIGTRAN of analogue means and port, gateway to be measured address and port, the destination node title H.248 used with SIGTRAN, call out timer, calling parameter.Comprise in the data configuration unit 1: timer units 11, being used to each to call out speech channel provides the timer registration separately and triggers function; Network communication unit 12 is responsible for setting up udp port, SCTP coupling, and transmission interface is provided and triggers the reception incident; And protocol encoding and decoding unit 13, be used to provide to H.248 with the codec functions of SIGTRAN.
Call Control Unit 2 is used to start H.248 registration service, the registration of wait Tandem Gateway, and set up Stream Control Transmission Protocol (SCTP) coupling with SGW, set up and also to activate ASP, wherein coupling (Association) is meant the logical communication link that carries out data passes that two SCTP endpoint set up by Stream Control Transmission Protocol regulation passage in other words; Also comprise Tandem Gateway (TG) control unit 21 and SGW (SG) control unit 22 in the Call Control Unit 2.These 2 control units can dispose separately directly calls test separately to single TG or SG gateway, also can with 2 control units integrated with the circuit sequence number in the Signaling System Number 7 with H.248 the repeat circuit destination node is corresponding one by one, the TG+SG integrated gateway is simulated the simultaneous call test of true call environment.The gateway registration service of the H.248 agreement that TG control unit 21 simulation Softswitch provide, after waiting for gateway registration, simulate the CCF of Softswitch again, by receiving and dispatching H.248 protocol message, control gateway the short time by the interior action of carrying out a large amount of loadings or discharging resource, thereby Tandem Gateway is carried out the high capacity call test.The SIGTRAN function that SG control unit 22 simulation Softswitch provide, set up traffic transport agreement (SCTP) coupling, foundation and activation ASP with SGW to be measured, by the No.7 signaling of transmitting-receiving M3UA (MTP3-User Adaptation Layer agreement) agreement carrying, simulation is to the SGW high capacity call.When carrying out the simultaneous call test, TG control unit 21 does not initiatively start after gateway registration to be called out, but waits for the inter-process messages that SG control unit 22 is sent, and control is to the loading or the release of Tandem Gateway related circuit destination node, and return results.Wherein TG control unit 21 can carry out call testing to Tandem Gateway separately, and it sends each speech channel according to call flow to Tandem Gateway and H.248 loads, modification and release message, and analyzing and processing gateway return messages; Wherein SG control unit 22 can carry out call testing to SGW separately, and it sends No.7 call signaling according to call flow to each speech channel to gateway, and the analyzing and processing gateway returns signaling; Wherein but TG control unit 21 and SG control unit 22 combined synchronization are carried out call testing to the integrated gateway of Tandem Gateway/SGW, and TG control unit 21 starts the inter-process messages that SG control unit 22 is waited in the back.After the latter began to call out, each state according to call flow sent different inter-process messages to the former, control the former send to Tandem Gateway H.248 load, modification and release message.The message that Tandem Gateway is replied is notified the latter through after the former processing by inter-process messages, and the latter upgrades the speech channel call state, continues next procedure, thereby finishes whole call flow.
As shown in Figure 1, call testing device of the present invention also can comprise: interface unit is used for providing the flow process controlled function of SG control unit to the TG control unit by a series of definition message and interface method; And display unit, be used to provide functions such as various parameter configuration, signaling tracing and statistical information demonstration.
In H.248/SIGTRAN Bulk Call call test method provided by the present invention, at first data configuration unit 1 carries out data configuration, comprise the IP address of H.248 using with SIGTRAN of analogue means and port, gateway to be measured address and port, the destination node title H.248 used with SIGTRAN, call out timer, calling parameter; Call Control Unit 2 starts H.248 registration service then, waits for the Tandem Gateway registration; Set up the SCTP coupling with SGW, set up and activate ASP; Next, if separately Tandem Gateway is carried out call testing, 21 of TG control units send each speech channel according to call flow to gateway and H.248 load, modification and release message, and analyzing and processing gateway return messages; If separately SGW is carried out call testing, 22 of SG control units send No.7 call signaling according to call flow to each speech channel to gateway, and the analyzing and processing gateway returns signaling; If the gateway integrated to Tandem Gateway/SGW carries out call testing, then TG control unit 21 and SG control unit 22 combined synchronization are carried out call testing, and wherein TG control unit 21 starts the inter-process messages that SG control unit 22 is waited in the back.After the latter began to call out, each state according to call flow sent different inter-process messages to the former, control the former send to Tandem Gateway H.248 load, modification and release message.The message that Tandem Gateway is replied is notified the latter through after the former processing by inter-process messages, and the latter upgrades the speech channel call state, continues next procedure, thereby finishes whole call flow.
Below, describe call testing in detail to the integrated gateway of TG, SG and TG/SG.
Fig. 2 is the flow chart that TG control unit 21 is tested the relaying gateway call separately, as shown in Figure 2, may further comprise the steps:
S101, after the Tandem Gateway registration, speech channel is in idle condition;
S102 after TG control unit 21 is received the duration of a call timer event, sends the caller speech channel to Tandem Gateway and loads resource request;
S103, TG control unit 21 decode after receiving that Tandem Gateway is replied message, if correct the loading replied message, the call context that carrying recorded decoding goes out, caller RTP (RTP) destination node title and caller SDP (Session Description Protocol) describe;
S104, TG control unit 21 sends called traffic resource load request;
S105, TG control unit 21 decoding Tandem Gateways are replied message, write down called RTP destination node title and called SDP and describe;
S106, TG control unit 21 describe to send according to called SDP and revise caller distant end media SDP description;
S107, TG control unit 21 trigger the ring timer after receiving that the request of modification is replied, and send the request of revising caller local media transmitting-receiving mode;
S108, TG control unit 21 receive that Tandem Gateway normally replys message, enter talking state;
S109, Call Control Unit 2 triggers duration of call timer, and TG control unit 21 sends the calling and called resource release request respectively;
S110, TG control unit 21 receive that normal calling and called discharge answer message, and the calling and called speech channel is in idle condition, and Call Control Unit starts the duration of a call timer, prepares call flow next time.
Fig. 3 a is SG control unit 22 independent caller speech channel flow charts to the SGW call testing, shown in Fig. 3 a, comprises step:
S201 receives the duration of a call timer event in idle condition, and SG control unit 22 sends IAM message (initial address message) to SGW;
After S202, SG control unit 22 receive SGW ACM message (Address Complete Message), enter ANM (response message) state of waiting for;
S203, SG control unit 22 is received ANM, enters talking state, starts duration of call timer;
S204, Call Control Unit 2 triggers duration of call timer, and SG control unit 22 sends REL message (release message) to SGW;
S205, after SGW was replied RLC message (Release complete), speech channel entered idle condition, and the duration of a call timer starts, and prepares to call out next time.
Fig. 3 b is SG control unit 22 independent called speech channel flow charts to the SGW call testing, shown in Fig. 3 b, comprises step:
S301 receives IAM message in idle condition, and SG control unit 22 sends ACM message to SGW, and starts the ring timer;
S302, the ring timer triggers, and sends ANM, enters talking state;
S303, SG control unit 22 is received REL message, replys RLC message, speech channel recovers idle condition.
Fig. 4 is to the calling procedure figure of signaling and Tandem Gateway synchronism detection, as shown in Figure 4, may further comprise the steps:
S401, the caller speech channel state of SG control unit 22 and TG control unit 21 begins to be the free time;
S402, the duration of a call timer triggers, and SG control unit 22 sends inter-process messages to TG control unit 21, and notice loads corresponding caller traffic resource;
After S403, TG control unit 21 receive that gateway loads recovery message, notice SG control unit 22 loadeds, SG control unit 22 sends the IAM message;
S404, after SG control unit 22 was received ACM message, notice TG control unit 21 was revised caller distant end media SDP and is described;
After S405, TG control unit 21 received that gateway is revised answer message, notice SG control unit 22 was revised successfully;
S406, SG control unit 22 are after waiting under the ANM state, receiving ANM, and notice TG control unit 21 is revised caller local media transmitting-receiving mode;
After S407, TG control unit 21 received that gateway modification local media transmitting-receiving mode is replied, notice SG control unit 22 entered talking state, and starts duration of call timer;
S408, duration of call timer triggers, and SG control unit 22 notice TG control units 22 discharge corresponding caller traffic resource;
S409, after the caller resource successfully discharged, 21 speech channels of TG control unit recovered idle condition, and notice SG control unit 22;
S410, TG control unit 21 is notified, sends REL message, receive that RLC replys message after, speech channel recovers idle condition, prepares to call out next time.
Fig. 5 is to the called flow figure of signaling and Tandem Gateway synchronism detection, as shown in Figure 5, may further comprise the steps:
S501, the called speech channel state of SG control unit 22 and TG control unit 21 begins to be the free time;
S502, after SG control unit 22 was received IAM message, notice TG control unit 21 loaded corresponding called traffic resource;
S503, after TG control unit 21 notice SG control units 22 loaded the resource success, SG control unit 22 sent ACM message, and starts the ring timer;
S504, the ring timer triggers, and SG control unit 22 sends ANM, enters talking state;
S505, SG control unit 22 are after talking state is received REL message, and notice TG control unit 21 discharges corresponding called traffic resource;
After S506, TG control unit 21 received that gateway discharges answer message, notice SG control unit discharged successfully, and enters idle condition;
S507, SG control unit 22 sends RLC message, and called speech channel enters idle condition, and starts the duration of a call timer, prepares to call out next time.
Certainly; the present invention also can have other various embodiments; under the situation that does not deviate from spirit of the present invention and essence thereof; those of ordinary skill in the art work as can make various corresponding changes and distortion according to the present invention, but these corresponding changes and distortion all should belong to the protection range of the appended claim of the present invention.
Claims (13)
1. call testing device is used for relaying/SGW is carried out the call testing of Bulk Call, comprising:
The data configuration unit is used for described call testing device and gateway to be measured are carried out data configuration, comprising: the address of configuration call testing apparatus and port are address and the port that the agreement of Softswitch is used; Dispose the address and the port of the agreement use of gateway to be measured; And configuration destination node title, call out timer, calling parameter;
Call Control Unit is used to treat survey grid and closes and to register or set up Stream Control Transmission Protocol SCTP coupling with gateway to be measured, and treats survey grid and close and carry out call testing, sends message related to calls to gateway to be measured, and the message returned of analyzing and processing gateway to be measured.
2. device as claimed in claim 1 is characterized in that, wherein said Call Control Unit comprises:
The Tandem Gateway control unit is used for Tandem Gateway to be measured is registered; And
The SGW control unit is used for setting up the SCTP coupling with SGW to be measured.
3. device as claimed in claim 1 or 2 is characterized in that, wherein said data configuration unit comprises timer units, and being used to each to call out speech channel provides the timer registration separately and trigger function.
4. device as claimed in claim 1 or 2 is characterized in that, wherein said data configuration unit pack includes network communication unit is used to set up user datagram protocol UDP port, SCTP coupling, and transmission interface is provided and triggers the reception incident.
5. device as claimed in claim 1 or 2 is characterized in that, wherein said data configuration unit comprises the protocol encoding and decoding unit, be used to provide to H.248 with the codec functions of SIGTRAN.
6. call test method is used to use call testing device that relaying/SGW is carried out the call testing of Bulk Call, comprises step:
Step 1, call testing device and gateway to be measured are carried out data configuration, comprising: the address of configuration call testing apparatus and port are address and the port that the agreement of Softswitch is used; Dispose the address and the port of the agreement use of gateway to be measured; And configuration destination node title, call out timer, calling parameter;
Step 2, treat survey grid and close and to register or set up the SCTP coupling with gateway to be measured;
Step 3, treat survey grid and close and to carry out call testing, described call testing device sends message related to calls to gateway to be measured, and the message returned of analyzing and processing gateway to be measured.
7. method as claimed in claim 6 is characterized in that, in described step 2, described gateway to be measured comprises Tandem Gateway and/or SGW, wherein Tandem Gateway to be measured is registered, and is set up the SCTP coupling with SGW to be measured.
8. method as claimed in claim 7, it is characterized in that, in described step 3, use Tandem Gateway control unit and SGW control unit to treat the survey grid pass and carry out call testing, comprising separately Tandem Gateway being carried out call testing, separately SGW is carried out call testing and Tandem Gateway and SGW are carried out the simultaneous call test.
9. method as claimed in claim 8 is characterized in that, wherein saidly separately Tandem Gateway is carried out call testing and comprises step:
Send the caller speech channel to Tandem Gateway and load resource request;
The answer message that Tandem Gateway is replied is decoded, obtain call context, caller realtime transmission protocol RTP destination node title and caller Session Description Protocol SDP and describe;
Send called speech channel to Tandem Gateway and load resource request;
The answer message that Tandem Gateway is replied is decoded, obtain called RTP destination node title and called SDP and describe;
According to called SDP the caller SDP description request of revising that sends is described;
After receiving that the request of modification is replied, trigger the ring timer, and send the caller local media transmitting-receiving mode request of revising;
After receiving that Tandem Gateway is normally replied message, enter talking state;
Trigger duration of call timer, send caller resource release request and called resource release request;
Receive that normal caller discharges answer message and message is replied in called release, start the duration of a call timer, caller speech channel and called speech channel are in idle condition, prepare call flow next time.
10. method as claimed in claim 8 is characterized in that, the wherein said caller speech channel of separately SGW being carried out call testing comprises step:
Receive the duration of a call timer event, send initial address message IAM;
After receiving Address Complete Message ACM, enter wait acknowledge message ANM state;
Receive ANM, enter talking state, start duration of call timer;
Duration of call timer triggers, and sends release message REL;
After SGW was replied Release complete RLC, speech channel entered idle condition, started the duration of a call timer, prepared to call out next time.
11. method as claimed in claim 8 is characterized in that, the wherein said called speech channel of separately SGW being carried out call testing comprises step:
Receive IAM message in idle condition, send ACM message, and start the ring timer;
The ring timer triggers, and sends ANM, enters talking state;
Receive REL message, reply RLC message, speech channel recovers idle condition.
12. method as claimed in claim 8 is characterized in that, the wherein said caller speech channel that Tandem Gateway and SGW are carried out the simultaneous call test comprises step:
Trigger the duration of a call timer, described SGW control unit sends inter-process messages to described Tandem Gateway control unit, and notice loads corresponding caller traffic resource;
Described Tandem Gateway control unit is notified described SGW control unit loaded after receiving that gateway loads recovery message, and described SGW control unit sends IAM message;
After described SGW control unit is received ACM message, notify described Tandem Gateway control unit to revise caller distant end media SDP and describe;
Described Tandem Gateway control unit notifies described SGW control unit to revise successfully after receiving that gateway is revised answer message;
Described SGW control unit notifies described Tandem Gateway control unit to revise caller local media transmitting-receiving mode after waiting under the ANM state, receiving ANM;
Described Tandem Gateway control unit is notified described SGW control unit after receiving that gateway modification local media transmitting-receiving mode is replied, and enters talking state, and starts duration of call timer;
Duration of call timer triggers, and described SGW control unit notifies described Tandem Gateway control unit to discharge corresponding caller traffic resource;
After the caller resource successfully discharged, described Tandem Gateway control unit speech channel recovered idle condition, and notifies described SGW control unit;
Described SGW control unit is notified, sends REL message, receive that RLC replys message after, speech channel recovers idle condition, prepares to call out next time.
13. method as claimed in claim 8 is characterized in that, the wherein said called speech channel that Tandem Gateway and SGW are carried out the simultaneous call test comprises step:
The called speech channel state of described SGW control unit and described Tandem Gateway control unit begins to be the free time;
After described SGW control unit is received IAM message, notify described Tandem Gateway control unit to load corresponding called traffic resource;
After described Tandem Gateway control unit notified described SGW control unit to load the resource success, described SGW control unit sent ACM message, and started the ring timer;
The ring timer triggers, and described SGW control unit sends ANM, enters talking state;
Described SGW control unit notifies described Tandem Gateway control unit to discharge corresponding called traffic resource after talking state is received REL message;
Described Tandem Gateway control unit is notified described SGW control unit to discharge successfully, and is entered idle condition after receiving that gateway discharges answer message;
Described SGW control unit sends RLC message, and called speech channel enters idle condition, and starts the duration of a call timer, prepares to call out next time.
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| CN110177180A (en) * | 2019-04-11 | 2019-08-27 | 珠海高凌信息科技股份有限公司 | Bulk Call calling set implementation method and device with digital junction call function |
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| Title |
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| 刘鹏.中创信测NGN监测解决方案.电信科学 4.2005,(4),第81页第2.1节第1至4行,第82页第2.5节第1至7行,图1. |
| 刘鹏.中创信测NGN监测解决方案.电信科学 4.2005,(4),第81页第2.1节第1至4行,第82页第2.5节第1至7行,图1. * |
| 姜维.华为 SHLR9200 大话务量模拟呼叫测试案例分析.江西通信科技 1.2006,(1),第45页第四节第1至6行. |
| 姜维.华为 SHLR9200 大话务量模拟呼叫测试案例分析.江西通信科技 1.2006,(1),第45页第四节第1至6行. * |
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