CN101426060B - Method, soft switching device and system for double home soft switch - Google Patents
Method, soft switching device and system for double home soft switch Download PDFInfo
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- CN101426060B CN101426060B CN2008101801020A CN200810180102A CN101426060B CN 101426060 B CN101426060 B CN 101426060B CN 2008101801020 A CN2008101801020 A CN 2008101801020A CN 200810180102 A CN200810180102 A CN 200810180102A CN 101426060 B CN101426060 B CN 101426060B
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Abstract
The embodiment of the invention discloses a dual-home soft exchanging method, soft exchanging equipment and system. The method includes: detecting that the link from a first gateway to a user automatic branch exchange PABX is not reachable, and transmitting a continue call message to the PABX through a second gateway. According to the PABX, the embodiment of the invention adds a gateway to perfect the dual-home soft exchanging function, when a soft exchanging equipment falls in failure, the first gateway and second gateway can still connectively call when the dual-home switching is performed; and when the first gateway falls in failure, the second gateway can do the normal business, without bringing in PABX service interruption.
Description
Technical field
The present invention relates to communication technical field, particularly relate to a kind of method, Softswitch and system of dual-homed soft switch.
Background technology
NGN (Next Generation Network, next generation network) is a kind of business-driven type network, it adopts the network architecture comprehensive, open, that merge, separating, call out control fully by business and calling control separates fully with carrying, thereby realize relatively independent business system, make business be independent of network.
NGN adopts to call out and carry and controls the technology that is separated, and the disposal ability of the network equipment is greatly improved, and can handle more traffic and the more traffic load of carrying.Softswitch is responsible for controlling a large amount of equipment and call proceeding, disposal ability and function are all very powerful, the user that Softswitch can be supported is hundred general-purpose amount magnitudes or equivalent relaying, this has simplified network configuration and level to operator on the one hand, effectively reduce equipment cost and O﹠M expenditure, also brought potential safety hazard but then: when Softswitch goes wrong with fault, will cause large-scale communication failure, and cause very large influence for whole network.
In the NGN network, " dual-homed " is a kind of Softswitch delay machine, Softswitch upgrade maintenance or the disaster tolerance mechanism of urgency communication can be provided when burst fire-disaster accident (for example machine room fire, the telecommunication cable interruption that connects machine room, abnormal electrical power supply etc.) occurring of preventing, by the mutually redundant mode between the two cover soft switchcall servers that are in diverse geographic location, guarantee when wherein a certain Softswitch breaks down, another Softswitch can be come its professional all adapter, thereby guarantees that network is in urgent communication security constantly." dual-homed " mechanism is the safe disaster tolerance technology of NGN field uniqueness, and is significant for coping with contingencies.
In realizing process of the present invention, the inventor finds that there is following problem at least in prior art:
Traditional dual-homed soft switch, when a Softswitch breaks down, MG (MediaGateway, media gateway) the dual-homed switching of carrying out needs the regular hour, can cause the professional short interruption of PABX (PrivateAutomatic Branch Exchange, automatic branch exchange), and when the MG fault, the PABX service disconnection can't be carried out normal process, has Single Point of Faliure.
Summary of the invention
The embodiment of the invention provides a kind of method, Softswitch and system of dual-homed soft switch, improve the function of dual-homed soft switch, when a Softswitch breaks down, when MG carries out dual-homed switching, second gateway still can replay call, do not need to wait for, and when former MG fault, can the normal process business.
The embodiment of the invention proposes a kind of method of dual-homed soft switch on the one hand, comprising:
Detection is unreachable to the link of automatic branch exchange PABX by first gateway,
By second gateway replay call information is sent to described PABX.
The embodiment of the invention proposes a kind of Softswitch on the one hand, is used to realize dual-homed soft switch, comprising:
Whether first detection module is used to detect by the link of first gateway to PABX and can reaches;
First sending module, the testing result that is used for when described first detection module is unreachable to the link of described PABX by first gateway, by second gateway replay call information is sent to described PABX.
The embodiment of the invention proposes a kind of Softswitch on the other hand, is used to realize dual-homed soft switch, comprising:
Second receiver module is used for when unreachable, receiving the replay call information that described first Softswitch sends to the link of PABX when first Softswitch detects by first gateway;
Second sending module is used for described replay call information is sent to described PABX by second gateway.
The embodiment of the invention proposes a kind of system on the other hand, is used to realize dual-homed soft switch, comprises first gateway, first Softswitch and second gateway,
Whether described first Softswitch is used to detect by the link of first gateway to PABX and can reaches;
Described second gateway is used for when unreachable, replay call information being sent to described PABX to the link of automatic branch exchange PABX when detecting by first gateway.
The embodiment of the invention adopts at PABX and sets up a gateway, improve the function of dual-homed soft switch, when a Softswitch breaks down, when carrying out dual-homed switching, first gateway and second gateway still can replay calls, and when first gateway fails, second gateway can the normal process business, can not cause the PABX service disconnection.
Description of drawings
In order to be illustrated more clearly in the technical scheme of the embodiment of the invention, the accompanying drawing of required use is done to introduce simply in will describing embodiment below, apparently, accompanying drawing in describing below only is some embodiments of the present invention, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 provides the flow chart of the method for dual-homed soft switch for the embodiment of the invention one;
Fig. 2 provides a kind of flow chart of method of dual-homed soft switch for the embodiment of the invention two;
Fig. 3 provides a kind of system configuration schematic diagram that is used to realize dual-homed soft switch for the embodiment of the invention three;
Fig. 4 provides a kind of first Softswitch structural representation for the embodiment of the invention three;
Fig. 5 provides a kind of second Softswitch structural representation for the embodiment of the invention three;
Fig. 6 provides a kind of system configuration schematic diagram that is used to realize dual-homed soft switch for the embodiment of the invention four;
Fig. 7 provides a kind of system configuration schematic diagram that is used to realize dual-homed soft switch for the embodiment of the invention five;
Fig. 8 provides a kind of system configuration schematic diagram that is used to realize dual-homed soft switch for the embodiment of the invention six.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the invention, the technical scheme in the embodiment of the invention is clearly and completely described, obviously, described embodiment only is a part of embodiment of the present invention, rather than whole embodiment.Based on the embodiment among the present invention, those of ordinary skills belong to the scope of protection of the invention not making the every other embodiment that is obtained under the creative work prerequisite.
As shown in Figure 1, the embodiment of the invention one provides the method for dual-homed soft switch, may further comprise the steps:
Step s101, detection is unreachable to the link of automatic branch exchange PABX (PrivateAutomatic Branch Exchange, automatic branch exchange) by first gateway,
Step s102 sends to PABX by second gateway with replay call information.
Also comprise if detect by first gateway unreachable to the link of PABX, replay call information is sent to second Softswitch, by second gateway replay call information is sent to PABX by second Softswitch.
The embodiment of the invention adopts at PABX and sets up a gateway, improve the function of dual-homed soft switch, when a Softswitch breaks down, when carrying out dual-homed switching, first gateway and second gateway still can replay calls, and when first gateway fails, second gateway can the normal process business, can not cause the PABX service disconnection.
Softswitch breaks down and comprises two kinds of possibilities; If the first Softswitch complete failure, this moment, PSTN can all deliver to second Softswitch to the calling to PABX; If second Softswitch is a partial fault, i.e. first soft switch and first gateway or first gateway and PABX only are that link is obstructed, and first soft switch meeting this moment is delivered to call proceeding information second gateway or delivered to second gateway by second Softswitch.
As shown in Figure 2, the embodiment of the invention two provides a kind of method of dual-homed soft switch, comprising:
Step s201 sends call information by common exchanging telephone network PSTN (Public Switched TelephoneNetwork, PSTN) to first Softswitch, comprises trigger condition in the call information.This trigger condition is used to trigger application server and finishes corresponding task, and call information then is to be used to call out PABX.
Step s202, first Softswitch trigger application server AS (Application Server, application server) according to the trigger condition in the call information.
Step s203, application server AS triggers corresponding business according to the trigger condition of first Softswitch, and AS finishes dealing with after this business of triggering, be sent completely indication to this first Softswitch, show that the first Softswitch business of triggering AS finishes.
Step s204, this first Softswitch receive above-mentioned finish indication after, above-mentioned call information is handled, generate replay call information, this replay call information is sent to PABX by first gateway, and whether detection can reach by the link of first gateway to automatic branch exchange PABX.By this replay call information is sent to PABX, to realize the calling of PSTN to PABX.When above-mentioned replay call information is sent to PABX, for guaranteeing that this replay call information arrives PABX smoothly, after first Softswitch sends to first gateway with this replay call information, need to detect PABX and whether receive the replay call information that sends through first gateway.
If being PABX, testing result do not receive replay call information, then detection is unreachable to the link of PABX by first gateway, changes step s205, receives replay call information if testing result is PABX, detection can reach by the link of first gateway to PABX, then changes step s207.
Step s205, if detection is unreachable to the link of PABX by first gateway, then PABX does not receive replay call information, then replay call information is sent to second Softswitch, and notice PSTN sends to second gateway with follow-up call information.This step has realized dual-homed effect, if promptly can not send above-mentioned replay call information by first Softswitch time, can send to second gateway by second Softswitch.
Perhaps detection is unreachable to the link of PABX by first gateway, then replay call information is sent to second gateway, sends to PABX by second gateway.
At this, PABX does not receive the replay call information that first gateway sends, and two kinds of situations are arranged:
First kind of situation is, fault has appearred in first gateway that connects the PABX and first Softswitch, therefore first Softswitch replay call information that sends to PABX does not have to send success, can send to second Softswitch with above-mentioned replay call information this moment by first Softswitch, sends to PABX by second gateway that links to each other with second Softswitch; Perhaps can above-mentioned replay call information be sent to second gateway, send to PABX by second gateway by first Softswitch.
Second kind of situation is that fault has appearred in first Softswitch.First Softswitch breaks down and comprises two kinds of possibilities: a kind of is the first Softswitch complete failure, under the normal condition between the dual-homed soft switch, promptly need to dispose mutually the other side's routing iinformation between first Softswitch and second Softswitch, when main using belongs to soft switch, after promptly first Softswitch lost efficacy, all-calls all can be around arriving standby ownership soft switch, i.e. second Softswitch, when this moment, standby ownership soft switch was found the calling that is routed to oneself is arranged, receive replay call information; A kind of is the first Softswitch partial fault, i.e. first soft switch and first gateway or first gateway and PABX only are that link is obstructed, and first Softswitch can be delivered to call proceeding information second gateway or deliver to second gateway by second Softswitch this moment.
Then change step s206.
Step s206, second Softswitch sends to second gateway with replay call information, and second gateway sends to PABX with replay call information.At this moment, second Softswitch and second gateway just can substitute first Softswitch and first gateway as the standby home soft exchange device of first Softswitch and first gateway, continue to finish the purpose of calling out PABX.
Perhaps second gateway sends to PABX with replay call information, not by second Softswitch.At this moment second gateway need be connected to first Softswitch.
Step s207 can reach by the link of first gateway to PABX if detect, and PABX receives replay call information, and then this PABX continues to receive the follow-up replay call information that first gateway sends.
After this calling procedure finishes,, just can via first Softswitch follow-up replay call information via first gateway be sent to PABX then through first Softswitch if during PSTN subsequent voice calls PABX.
Two cover soft switch SS (Soft Switch, when soft switch) equipment normally moves, main and standby relation each other, the Tandem Gateway that respectively draws oneself up, IAD, terminal equipment etc., finish the calling and the service control function of self control domain, when wherein a cover Softswitch breaks down, corresponding mutually redundant Softswitch will be responsible for taking over Tandem Gateway, IAD and the terminal equipment of its control, and all-calls all can be directed to mutually redundant Softswitch.The main address information of configuration such as Tandem Gateway, IAD, terminal equipment with ownership soft switch and standby ownership soft switch, and adopt and H.248/MGCP/SIP wait agreement to detect with the ownership soft switch with main, main when unreachable, register when detecting from the standby ownership soft switch of trend with the ownership soft switch.The heartbeat mechanism of employing SIP-ITU-T detects the existing state of the soft switch that backups each other between the two cover soft switch, and configuration the other side's routing iinformation, so that when a cover Softswitch breaks down, corresponding mutually redundant Softswitch will be responsible for taking over Tandem Gateway, IAD and the terminal equipment of its control.
Also comprise behind the step s206:
To first Softswitch, send follow-up call information to second Softswitch by PSTN, perhaps send follow-up call information to second Softswitch by PSTN by first Softswitch;
Second Softswitch triggers application server according to follow-up call information;
After second Softswitch received the follow-up replay call information that application server replys according to follow-up call information, after follow-up replay call information handled, the follow-up replay call information after will handling sent to second gateway;
Second gateway sends to PABX with follow-up replay call information.
After this calling procedure finishes,, just can via second gateway follow-up replay call information be sent to PABX then through second Softswitch if during PSTN subsequent voice calls PABX.
From above specific embodiment as can be seen, under first Softswitch is found situation that first gateway breaks down, the information that needs send can be sent to second Softswitch, the message that second Softswitch then can will need to send by the second standby gateway sends to PABX, thereby realized perfect dual-homed soft switch, in addition, when first Softswitch breaks down, information via second gateway that also can switch to second Softswitch will need to send sends to PABX, when gateway carried out dual-homed switching, second gateway still can replay call, does not need to wait for, and when first gateway fails, can the normal process business.
The embodiment of the invention adopts at PABX and sets up a gateway, improve the function of dual-homed soft switch, when a Softswitch breaks down (such as first soft switch is to link failure of first gateway or PABX), when carrying out dual-homed switching, first gateway and second gateway still can replay calls, and when first gateway fails, second gateway can the normal process business, can not cause the PABX service disconnection.
The embodiment of the invention three provides a kind of system that is used to realize dual-homed soft switch, as shown in Figure 3, comprising:
Whether first Softswitch 310 is used to detect by the link of first gateway 320 to automatic branch exchange PABX 330 and can reaches;
This system also comprises second Softswitch 340,
It is unreachable to be used for working as the link that detects by first gateway 320 to automatic branch exchange PABX 330, receives the replay call information that first Softswitch 310 sends, and by second gateway 350 replay call information is sent to PABX 330.
Wherein, first Softswitch 310 is used for sending replay call information by first gateway 320 to PABX 330, and whether detection PABX 330 receives replay call information;
If testing result is PABX 330 when not receiving, then detect by the link of first gateway 320 to PABX330 unreachable.
Wherein, second Softswitch 340 can also be used for receiving the replay call information that first Softswitch 310 sends by PSTN 360.
At this, PABX 330 does not receive the replay call information that first gateway 320 sends, and two kinds of situations are arranged:
First kind of situation is, fault has appearred in first gateway 320 that connects the PABX 330 and first Softswitch 310, can send to second Softswitch 340 with above-mentioned replay call information this moment by first Softswitch 310, sends to PABX 330 by second gateway 350 that links to each other with second Softswitch 340.
Second kind of situation is that fault has appearred in first Softswitch 310, under the normal condition between the dual-homed soft switch, promptly between first Softswitch 310 and second Softswitch 340, need to dispose mutually in advance the other side's routing iinformation, when main using belongs to soft switch, after promptly first Softswitch 310 lost efficacy, all-calls all can pass through standby ownership soft switch, i.e. second Softswitch 340, standby ownership soft switch this moment is found to have when being routed to main calling with the ownership soft switch, receive replay call information, and send replay call information to PABX 330 by second gateway.
Whether first detection module 311 is used to detect by the link of first gateway 320 to automatic branch exchange PABX 330 and can reaches;
First sending module 312, be used for when the testing result of first detection module 311 for when unreachable, replay call information being sent to PABX 330 by second gateway 350 by the link of first gateway 320 to PABX 330.
First sending module 312 also is used for sending replay call information by first gateway 320 to PABX 330;
This first Softswitch 310 also comprises:
Receive replay call information if the testing result of first detection module 311 is PABX 330, then continue to receive the follow-up replay call information that first gateway 320 sends.
Above-mentioned second Softswitch 340 as shown in Figure 5, comprising:
Second receiver module 341 is used for when unreachable, receiving the replay call information that first Softswitch 310 sends to the link of automatic branch exchange PABX 330 when first Softswitch detects by first gateway 320;
Second sending module 342 is used for replay call information is sent to PABX330 by second gateway 350.
From above specific embodiment as can be seen, under the situation that first Softswitch, 310 discoveries, first gateway 320 breaks down, promptly do not detect first gateway 320 replay call information is sent to PABX330, the replay call information that needs send can be sent to second Softswitch 340, the message that second Softswitch 340 then can will need to send by the second standby gateway 350 sends to PABX330, thereby realized perfect dual-homed soft switch, in addition, when first Softswitch 310 breaks down, information via second gateway 350 that also can switch to second Softswitch 340 will need to send sends to PABX330, when first gateway 320 and second gateway 350 carry out dual-homed switching, second gateway still can replay call, do not need to wait for, and when first gateway fails, can the normal process business.
The embodiment of the invention adopts at PABX and sets up a gateway, improve the function of dual-homed soft switch, when a Softswitch breaks down (such as first soft switch is to link failure of first gateway or PABX), when carrying out dual-homed switching, first gateway and second gateway still can replay calls, and when first gateway fails, second gateway can the normal process business, can not cause the PABX service disconnection.
As shown in Figure 6, the embodiment of the invention four provides a kind of system that is used to realize dual-homed soft switch,
Different with embodiment three is, in the present embodiment, PSTN 360 ' is used to detect whether fault of first Softswitch 310 ', when PSTN 360 ' detects first Softswitch, 310 ' fault, retransmit call information to second Softswitch 340 ', after second Softswitch 340 ' receives the call information of PSTN 360 ' repeating transmission, trigger AS 370 ', and receive that AS 370 ' replys finish indication after, generate replay call information, and send to PABX 330 ' by second gateway 350 '.
Or PSTN 360 ' sends to second Softswitch, 340 ', the second Softswitch 340 ' with the replay call information of first Softswitch 310 ' this replay call information is sent to PABX 330 ' by second gateway 350 '.
When this programme embodiment breaks down at first Softswitch 310 ', can call information be sent to second Softswitch 340 ', can keep the normal process business by second Softswitch 340 ' and second gateway 350 ' by PSTN 360 '.
Concrete flow process and the above embodiments are similar, do not repeat them here.
As shown in Figure 7, the embodiment of the invention five provides a kind of system that is used to realize dual-homed soft switch, different with the system of embodiment three dual-homed soft switch is, first Softswitch 310 " can connect first gateway 320 " and second gateway 350 "; same, second Softswitch 340 " also can connect first gateway 320 " and second gateway 350 ".When detecting first Softswitch 310 " or first gateway 320 " when breaking down, by first Softswitch 310 " replay call information is sent second Softswitch 340 ", by second gateway 350 " this replay call information is sent to PABX 330 ".When first gateway 320 " during fault, can be by first Softswitch 310 " replay call information is sent to second Softswitch 340 ", second Softswitch 340 " by second gateway 350 " replay call information is sent to PABX.
The embodiment of the invention adopts at PABX and sets up a gateway, improve the function of dual-homed soft switch, when a Softswitch breaks down (such as first soft switch is to link failure of first gateway or PABX), when carrying out dual-homed switching, first gateway and second gateway still can replay calls, and when first gateway fails, second gateway can the normal process business, can not cause the PABX service disconnection.
As shown in Figure 8, the system of the dual-homed soft switch that the embodiment of the invention six provides, first Softswitch 310 " ' can connect first gateway 320 " ' and second gateway 350 " '; same, second Softswitch 340 " ' also can connect first gateway 320 " ' and second gateway 350 " '.
What wherein embodiment six-1 and embodiment five were different is, first Softswitch 310 ' " and second Softswitch 340 " ' between do not have heartbeat signal, when first gateway 320 " ' during fault; can by first Softswitch 310 " ' send to second gateway 350 with replay call information " ', at this moment can pass through second Softswitch 340 " '.
Embodiment six-2 is still according to as shown in Figure 8 system's connected mode, different with embodiment six-1 is, in embodiment six-2, PSTN 360 " ' be used to detect first Softswitch 310 " ' fault whether, as PSTN 360 " during ' detect first Softswitch 310 " ' fault, to second Softswitch 340 " ' retransmit call information; second Softswitch 340 " ' receive PSTN 360 " ' call information retransmitted after; trigger AS 370 " ', and receiving AS370 " ' reply finish indication after; generate replay call information, and by second gateway 350 " ' send to PABX 330 " '.
Or PSTN 360 " the replay call information of ' with first Softswitch 310 " ' sends to second Softswitch 340 " ', second Softswitch 340 " ' with this replay call information by second gateway 350 " ' send to PABX 330 " '.
Concrete flow process and the above embodiments are similar, do not repeat them here.
Soft switch detects PABX and whether receives the replay call information that first gateway sends in the embodiment of the invention, in the absence about receiving, initiatively initiates the switching of link, switches to second soft switch or second gateway.At this moment the initiative of selecting which bar link is grasped in soft switch.And, just passable in the embodiment of the invention as long as PABX is connected to two gateways, and do not require that a gateway must be connected to two soft switch and carry out service backup.Gateway is connected to two soft switch, and to carry out service backup be the preferred embodiments of the present invention.
The embodiment of the invention adopts at PABX and sets up a gateway, improve the function of dual-homed soft switch, when a Softswitch breaks down (such as first soft switch is to link failure of first gateway or PABX), when carrying out dual-homed switching, first gateway and second gateway still can replay calls, and when first gateway fails, second gateway can the normal process business, can not cause the PABX service disconnection.
Through the above description of the embodiments, those skilled in the art can be well understood to the present invention and can realize by hardware, also can realize based on such understanding by the mode that software adds necessary general hardware platform, technical scheme of the present invention can embody with the form of software product, it (can be CD-ROM that this software product can be stored in a non-volatile memory medium, USB flash disk, portable hard drive etc.) in, comprise that some instructions are with so that a computer equipment (can be a personal computer, server, the perhaps network equipment etc.) carry out the described method of each embodiment of the present invention.
It will be appreciated by those skilled in the art that accompanying drawing is the schematic diagram of a preferred embodiment, module in the accompanying drawing or flow process might not be that enforcement the present invention is necessary.
The above only is a preferred implementation of the present invention; should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the principle of the invention; can also make some improvements and modifications, these improvements and modifications also should be looked protection scope of the present invention.
Claims (9)
1. the method for a dual-homed soft switch is characterized in that, comprising:
Send replay call information by first gateway to automatic branch exchange PABX, and detect described PABX and whether receive described replay call information;
If testing result is described PABX when not receiving, then detect by first gateway unreachable to the link of PABX,
By second gateway replay call information is sent to described PABX;
Described first gateway that passes through sends replay call information to PABX, is specially:
The call information that sends according to common exchanging telephone network PSTN triggers application server;
Receive the described application server that is triggered and finish the indication of finishing of replying after the business of triggering, the call information that described PSTN sends is handled, generate described replay call information;
Send described replay call information by described first gateway to described PABX.
2. the method for claim 1 is characterized in that, described detection is unreachable to the link of PABX by first gateway, specifically comprises:
When first Softswitch or described first gateway fails, then detect unreachable to the link of PABX by first gateway.
3. the method for claim 1, it is characterized in that, if detection is unreachable to the link of PABX by first gateway, replay call information is sent to second Softswitch, by second gateway described replay call information is sent to described PABX by described second Softswitch.
4. a Softswitch is used to realize dual-homed soft switch, it is characterized in that, comprising:
Whether first detection module is used to detect by the link of first gateway to automatic branch exchange PABX and can reaches;
First sending module is used for working as the testing result of described first detection module for to arrive by first gateway
The link of described PABX is unreachable, by second gateway replay call information is sent to described PABX;
First trigger module, the call information that is used for sending according to PSTN triggers application server;
First processing module is used to receive the described application server that is triggered and finishes the indication of finishing of replying after the business of triggering, and the call information that described PSTN sends is handled, and generates described replay call information, and notifies described first sending module.
5. Softswitch as claimed in claim 4 is characterized in that, described first sending module also is used for sending replay call information by first gateway to described PABX;
First detection module is used to detect described PABX and whether receives described replay call information, if do not receive described replay call information, then detects by first gateway unreachable to the link of PABX.
6. as claim 4 or 5 described Softswitch, it is characterized in that, first detection module detects by first gateway unreachable to the link of PABX, described first sending module sends to second Softswitch with replay call information, by second gateway described replay call information is sent to described PABX by described second Softswitch.
7. a system is used to realize dual-homed soft switch, it is characterized in that, comprises first gateway, first Softswitch and second gateway,
Whether described first Softswitch is used for sending replay call information by first gateway to automatic branch exchange PABX, detect can reach by the link of first gateway to PABX;
Described second gateway is used for when unreachable, replay call information being sent to described PABX to the link of PABX when detecting by first gateway;
Described first gateway that passes through sends replay call information to PABX, is specially:
The call information that sends according to common exchanging telephone network PSTN triggers application server;
Receive the described application server that is triggered and finish the indication of finishing of replying after the business of triggering, the call information that described PSTN sends is handled, generate described replay call information;
Send described replay call information by described first gateway to described PABX.
8. system as claimed in claim 7 is characterized in that, also comprises second Softswitch,
Be used for when unreachable, receiving the replay call information of first Softswitch transmission to the link of PABX, described replay call information sent to described PABX by second gateway when detecting by first gateway.
9. as claim 7 or 8 described systems, it is characterized in that described first Softswitch is used for sending replay call information by first gateway to PABX, and detect described PABX and whether receive described replay call information;
If testing result is described PABX when not receiving, then detect unreachable to the link of PABX by first gateway.
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101883116B (en) * | 2010-06-30 | 2016-01-20 | 中兴通讯股份有限公司 | Call processing method and media gateway |
| US8848516B2 (en) * | 2010-09-15 | 2014-09-30 | Telefonaktiebolaget L M Ericsson (Publ) | Methods and apparatus for relocating and restoring connections through a failed serving gateway and traffic offloading |
| US10225178B2 (en) | 2010-09-15 | 2019-03-05 | Telefonaktiebolaget Lm Ericsson (Publ) | Methods and apparatus for relocating and restoring connections through a failed serving gateway and traffic offloading |
| WO2015051552A1 (en) * | 2013-10-12 | 2015-04-16 | 华为技术有限公司 | Tunnel status processing method, device and system |
| CN109151236B (en) * | 2018-09-03 | 2021-02-02 | 中国联合网络通信集团有限公司 | Call route selection method and call route selection system |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6671367B1 (en) * | 1999-05-17 | 2003-12-30 | Telefonaktiebolaget Lm Ericsson | Capability negotiation in a telecommunications network |
| CN101005410A (en) * | 2006-12-15 | 2007-07-25 | 华为技术有限公司 | Detecting method and device for loading state and method and system for distributing loading resource |
| CN101064633A (en) * | 2006-04-25 | 2007-10-31 | 中兴通讯股份有限公司 | Method for switching automatically signaling routing in dual homing |
-
2008
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6671367B1 (en) * | 1999-05-17 | 2003-12-30 | Telefonaktiebolaget Lm Ericsson | Capability negotiation in a telecommunications network |
| CN101064633A (en) * | 2006-04-25 | 2007-10-31 | 中兴通讯股份有限公司 | Method for switching automatically signaling routing in dual homing |
| CN101005410A (en) * | 2006-12-15 | 2007-07-25 | 华为技术有限公司 | Detecting method and device for loading state and method and system for distributing loading resource |
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