CN105515655A - Voice master and standby switching method based on SIP (Session Initiation Protocol) - Google Patents
Voice master and standby switching method based on SIP (Session Initiation Protocol) Download PDFInfo
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- CN105515655A CN105515655A CN201610031459.7A CN201610031459A CN105515655A CN 105515655 A CN105515655 A CN 105515655A CN 201610031459 A CN201610031459 A CN 201610031459A CN 105515655 A CN105515655 A CN 105515655A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/74—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission for increasing reliability, e.g. using redundant or spare channels or apparatus
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
- H04B10/07—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems
- H04B10/075—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems using an in-service signal
- H04B10/079—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems using an in-service signal using measurements of the data signal
- H04B10/0791—Fault location on the transmission path
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
- H04B10/07—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems
- H04B10/075—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems using an in-service signal
- H04B10/079—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems using an in-service signal using measurements of the data signal
- H04B10/0793—Network aspects, e.g. central monitoring of transmission parameters
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
- H04L65/1066—Session management
- H04L65/1101—Session protocols
- H04L65/1104—Session initiation protocol [SIP]
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Business, Economics & Management (AREA)
- General Business, Economics & Management (AREA)
- Multimedia (AREA)
- Telephonic Communication Services (AREA)
- Data Exchanges In Wide-Area Networks (AREA)
Abstract
The invention discloses a voice master and standby switching method based on an SIP (Session Initiation Protocol). The voice master and standby switching method comprises the following steps: electrifying a master control standby disc; after initializing, transmitting a voice synchronizing signal; receiving the voice synchronizing signal through a master control main disc and scanning all voice ports; synchronizing registering information, calling information, SIP stack key information and RTP (Real Time Protocol) channel information to the standby disc in sequence; when the main disc detects that the voice registering information or the calling information of the ports is changed or one path of conversation in the ports receives an event under a calling state, updating the registering information or the calling information of an upper phase of the master control standby disc; when the master control standby disc has faults or is reset, performing voice master and standby switching according to a signal of switching the master control standby disc and the main disc. With the adoption of master and standby synchronization driven by a voice event and triggered by state changes, high instantaneity of voice business synchronization is guaranteed; the master and standby switching speed is rapid and normal proceeding of voice businesses of a user is not influenced; the user who participates in the voice businesses cannot feel the faults.
Description
Technical field
The present invention relates to optical communication voice field, be specifically related to a kind of voice main and standby rearranging method based on Session Initiation Protocol.
Background technology
In OLT (Optical Network Terminal) communication system, master control is the center of whole communication system, master control generally adopts 1+1 backup mode, with ensure master control break down or meet with restart time OLT on business be not interrupted, namely when the master control worked is broken down or meet with restart time, other one piece of idle standby dish can become master work immediately.
At present, the masterslave switchover of masterslave switchover technology mainly for hardware or the masterslave switchover of configuration and management, seldom relate to the masterslave switchover of speech business, but along with market and the demand reduced costs, present needs realize speech business in OLT master control, like this master control break down carry out masterslave switchover time, the speech business run can be interrupted, suffer customer complaint, therefore speech business also need carry out the software backup of 1+1 in master control, ensure master control because of fault carry out masterslave switchover time, speech business also can carry out masterslave switchover, make user awareness OLT participating in speech business less than master control active and standby migration at this moment.
Summary of the invention
Technical problem to be solved by this invention be master control because of fault carry out masterslave switchover time, speech business also can carry out masterslave switchover, and makes OLT is participating in the problem of user awareness less than master control active and standby migration at this moment of speech business.
In order to solve the problems of the technologies described above, the technical solution adopted in the present invention is to provide a kind of voice main and standby rearranging method based on Session Initiation Protocol, comprises the following steps:
The standby dish of master control of steps A 10, OLT communication system powers on, and sends voice synchronous signal after initialization;
After steps A 20, master control master receive voice synchronous signal, the upper all voice ports of scanning OLT, and in order the log-on message of each port, participate in the Session Initiation Protocol stack key message of the port of speech business and the call information of all dialogues and RTP channel information and be synchronized to standby coiling;
Steps A 30, detect that the voice log-on message of port or call information change when master, or in port, a road dialogue receives an event under call state, upgrades the upper corresponding log-on message of the standby dish of master control or call information;
Steps A 40, when the master control master run breaks down or restarts, voice module receives the signal that the standby dish of master control is switched with master control master, performs voice masterslave switchover.
In the above-mentioned methods,
Described log-on message comprises remaining time of retry after the registration refreshing of registration timer or registration failure, registration sequence number, Call-Id and login state;
Described Session Initiation Protocol stack key message comprises: the INVITE signaling that the port of the participation speech business that master control master is preserved sends or receives relates to the critical field of dialogue, and the 180ring sending or receive relates to the critical field of dialogue;
Described call information comprise the call state of all dialogues of the port participating in speech business, number figure and length timer matching status, number, the state of dislodging machine, the playback timer dialled;
Described RTP channel information comprises the RTP port numbers of the RTP port numbers of far-end IP and far-end and the IP of local terminal and local terminal.
In the above-mentioned methods, described critical field comprises:
From field is the logic flag of request promoter;
From-tag field is this locality mark of request promoter;
To field, be first and be also at first specified request " logic " receive ground;
To-tag field, refers to this locality mark of respondent;
Call-id field is the unique designation of differentiation one group of message;
Via field, identifies the address of replying and sending back to;
Branch-id field, for distinguishing the affairs that request creates;
Contact field, contains the contact method of local terminal, is usually made up of the full name of user name and a main frame.
In the above-mentioned methods, when being synchronized to remaining time of registration timer of the standby dish of master control and playback timer is not 0, then start master control standby dish registration timer and playback timer, but do not perform concrete operations when the registration timer coiled when master control is standby or playback timer expiry.
In the above-mentioned methods, when the follow-up transmission of master control master or when receiving 200OK termination response, then the value of the critical field contact and to-tag that relate to dialogue in 200OK is replaced the critical field contact of 180ring and the value of to-tag.
It is synchronously active and standby that the present invention adopts speech events driving and state variation to trigger, ensure that the real-time of speech business software synchronization is high, the speed of masterslave switchover is fast, when master go wrong or fault time, speech business can carry out masterslave switchover immediately, be switched to standby dish process rapidly, normally carrying out of user speech business is not affected in reversed process, allow the user awareness that participates in speech business less than the existence of fault, and the method is applicable to the masterslave switchover of other voice protocol business softwares too.
Accompanying drawing explanation
Fig. 1 is the flow chart of a kind of voice main and standby rearranging method based on Session Initiation Protocol provided by the invention;
Fig. 2 is with the flow chart of speech business real-time synchronization between an embodiment master control active and standby dish doing the port of caller in the present invention.
Embodiment
Below in conjunction with Figure of description and specific embodiment, the present invention is described in detail.
A kind of voice main and standby rearranging method based on Session Initiation Protocol provided by the invention, as shown in Figure 1, comprises the following steps:
The standby dish of master control of steps A 10, OLT communication system powers on, and sends voice synchronous signal to the master control master run after initialization;
After steps A 20, master control master receive voice synchronous signal, all voice ports on scanning OLT, and in order the log-on message of each port, the call information participating in all CallLeg (dialogue) of the port of speech business, the Session Initiation Protocol stack key message participating in the port of speech business and RTP channel information are synchronized to standby dish, the voice key information of standby dish and master is consistent.Wherein,
Log-on message comprises remaining time of retry after the registration refreshing of registration timer or registration failure, registration sequence number, Call-Id (call address) and login state etc., and these log-on messages composition data structure is synchronized on the standby dish of master control; If the remaining time being synchronized to the timer of the standby dish of master control is not now 0, then start registration timer, do not perform concrete operations when the registration timer time-out of the standby dish of master control, concrete operations are performed after its registration timer time-out by the master control master run.
Call information comprises the call state of all CallLeg (dialogue) of the port participating in speech business, several figure and length timer matching status; The number dialled; The state of dislodging machine; Playback timer etc., such as, if a port has three party service, then have two CallLeg (dialogue), just the call states of these two dialogues, number figure and length timer matching status, dial number, the state, playback timer etc. of dislodging machine be synchronized to that master control is standby coils; If the playback timer being synchronized to the standby dish of master control is not now 0, then start playback timer, such as, if a port is putting ring-back tone, 30 seconds have been put, overall length is 60 seconds, then remain 30 seconds, after synchronous, then at standby disk startup playback timer of 30 seconds, the same with registration timer, do not perform concrete operations after time-out.
The 180ring of the port transmission that Session Initiation Protocol stack key message comprises the participation speech business that master control master is preserved with character string forms in the buffering area of dialogue or critical field and transmission or reception that the INVITE signaling received relates to CallLeg (dialogue) relates to the session key section of dialogue;
Critical field comprises from, from-tag, to, to-tag, call-id, via, branch-id, contact etc.; From field refers to the logic flag of request promoter; From-tag field refers to this locality mark of request promoter; To field refers to first and is also that specified request " logic " receives ground at first; To-tag field refers to this locality mark of respondent; Call-id field is the unique designation of differentiation one group of message; Via field identification replys the address sent back to; The affairs that branch-id field creates for distinguishing request; Contact field contains the contact method of local terminal, is usually made up of the full name of user name and a main frame.The standby dish of critical field master control for Session Initiation Protocol stack key message obtains from database, revival is to Session Initiation Protocol stack, Session Initiation Protocol stack creates the CallLeg (dialogue) identical with master control master and Transaction (things) according to these critical fielies, like this after execution voice masterslave switchover, the follow-up signaling sent of port still belongs to same session or same things.
In the present invention, because 180ring is Temporary Response, it is insecure transmission, likely lose, and critical field contact is optional in 180ring, likely do not carry this field in this INVITE signaling, therefore when follow-up transmission or when receiving 200OK termination response, then the value relating to session key section contact and to-tag in 200OK is replaced with the critical field contact of 180ring and the value of to-tag.
RTP channel information comprises the RTP port numbers etc. of the RTP port numbers of far-end IP and far-end and the IP of local terminal and local terminal, RTP channel information is synchronized to after master control not only can ensure masterslave switchover for dish and follow-uply can carries out value-added service (such as tripartite), current local RTP port can also be made not reused by other ports.
Steps A 30, when master detect port voice log-on message or call information changes and, or port Zhong Mou road CallLeg (dialogue) receives certain event under certain call state, upgrade the upper corresponding log-on message of the standby dish of master control or call information, namely the relevant information of registration or calling is coiled to master control is standby by database Channel Synchronous, master control standby each port status moment of dish and master control master are consistent, but the standby dish of master control does not really operate speech business.The present invention adopts state synchronized and event synchronization two kinds of methods of synchronization, real-time state synchronized is identical with the mode of the batch synchronization of standby dish power-up initializing, the real time data synchronization of master control master in the standby dish of master control, and create the CallLeg object identical with master control master and Transaction object according to synchronous session key section, start registration or playback timer.
Steps A 40, when the master control master run breaks down or restarts, voice module receives the signal that the standby dish of master control is switched with master control master, perform voice masterslave switchover, the standby dish of master control performs the speech business the same with master control master and operates, the speech business of well afoot is not interrupted, normally works.
Below with a port doing caller for embodiment is to illustrate the process of speech business real-time synchronization between master control active and standby dish, as shown in Figure 2, between this embodiment master control active and standby dish, speech business real-time synchronization detailed process is:
When user's off-hook, user hears dialing tone, and now state becomes dialing tone state from idle condition, dialing tone state and dialing tone timer duration is synchronized to the standby dish of master control, standby disk startup dialing tone timer;
Subscriber dialing, now state becomes number detected state from dialing tone state, and this state and dialer event are synchronized to the standby dish of master control one by one, and dialing tone timer cancelled by the standby dish of master control;
After master control master is dialled the number and is matched certain number figure, number is reported by INVITE signaling, now state becomes call state from number change detected state, this state and call information, Session Initiation Protocol stack key message are synchronized to the standby dish of master control, and master control creates with identical CallLeg (dialogue) object of master and INVITETransaction (the INVITE affairs in dialogue) object for packing according to session key section;
When master port receive hear ring-back tone after 180ring time, now state becomes ring-back tone state from call state, and this state and ring-back tone timer duration are synchronized to the standby dish of master control, and master control is for disk startup ring-back tone timer;
When after called subscriber's off-hook, now state becomes talking state from ring-back tone state, this state and the relevant RTP channel information of call are synchronized to the standby dish of master control, master control standby dish termination INVITETransaction (things) object, but retain CallLeg object;
After above synchronous, the state of the standby dish of master control and data content and master control master are consistent substantially.After the master control master just run breaks down, the standby dish of trouble-free master control substitutes master control master and works on, now coil the voice status that is synchronized to and resource does some business operations according to current master control is standby, such as when port is in the state of registration failure, re-register after timer expiry, refresh registration after the timer expiries such as the successful state of port.This just makes when carrying out voice masterslave switchover, when user is listening dialing tone, can not interrupt, and user continues to maintain and listens this state of dialing tone; When user converses, user can not the exception variation of perception master control, and call there will not be of short duration interruption, or delay etc.
Obviously, those skilled in the art can carry out various change and modification to the present invention and not depart from the spirit and scope of the present invention.Like this, if these amendments of the present invention and modification belong within the scope of the claims in the present invention and equivalent technologies thereof, then the present invention is also intended to comprise these change and modification.
Claims (5)
1., based on a voice main and standby rearranging method for Session Initiation Protocol, it is characterized in that, comprise the following steps:
The standby dish of master control of steps A 10, OLT communication system powers on, and sends voice synchronous signal after initialization;
After steps A 20, master control master receive voice synchronous signal, the upper all voice ports of scanning OLT, and in order the log-on message of each port, participate in the Session Initiation Protocol stack key message of the port of speech business and the call information of all dialogues and RTP channel information and be synchronized to standby coiling;
Steps A 30, detect that the voice log-on message of port or call information change when master, or in port, a road dialogue receives an event under call state, upgrades the upper corresponding log-on message of the standby dish of master control or call information;
Steps A 40, when the master control master run breaks down or restarts, voice module receives the signal that the standby dish of master control is switched with master control master, performs voice masterslave switchover.
2. the method for claim 1, is characterized in that,
Described log-on message comprises remaining time of retry after the registration refreshing of registration timer or registration failure, registration sequence number, Call-Id and login state;
Described Session Initiation Protocol stack key message comprises: the INVITE signaling that the port of the participation speech business that master control master is preserved sends or receives relates to the critical field of dialogue, and the 180ring sending or receive relates to the critical field of dialogue;
Described call information comprise the call state of all dialogues of the port participating in speech business, number figure and length timer matching status, number, the state of dislodging machine, the playback timer dialled;
Described RTP channel information comprises the RTP port numbers of the RTP port numbers of far-end IP and far-end and the IP of local terminal and local terminal.
3. method as claimed in claim 2, it is characterized in that, described critical field comprises:
From field is the logic flag of request promoter;
From-tag field is this locality mark of request promoter;
To field, be first and be also at first specified request " logic " receive ground;
To-tag field, refers to this locality mark of respondent;
Call-id field is the unique designation of differentiation one group of message;
Via field, identifies the address of replying and sending back to;
Branch-id field, for distinguishing the affairs that request creates;
Contact field, contains the contact method of local terminal, is usually made up of the full name of user name and a main frame.
4. method as claimed in claim 3, it is characterized in that, when being synchronized to remaining time of registration timer of the standby dish of master control and playback timer is not 0, then start master control standby dish registration timer and playback timer, but do not perform concrete operations when the registration timer coiled when master control is standby or playback timer expiry.
5. method as claimed in claim 3, it is characterized in that, when the follow-up transmission of master control master or when receiving 200OK termination response, then the value of the critical field contact and to-tag that relate to dialogue in 200OK is replaced the critical field contact of 180ring and the value of to-tag.
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Cited By (1)
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| CN105515655B (en) | 2018-02-16 |
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