CN106341409A - Telephone conference seamless switching method - Google Patents
Telephone conference seamless switching method Download PDFInfo
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- CN106341409A CN106341409A CN201610837424.2A CN201610837424A CN106341409A CN 106341409 A CN106341409 A CN 106341409A CN 201610837424 A CN201610837424 A CN 201610837424A CN 106341409 A CN106341409 A CN 106341409A
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- conference
- meeting
- multimedia server
- management center
- conference management
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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
- H04L65/40—Support for services or applications
- H04L65/403—Arrangements for multi-party communication, e.g. for conferences
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
- H04L41/06—Management of faults, events, alarms or notifications
- H04L41/0654—Management of faults, events, alarms or notifications using network fault recovery
- H04L41/0663—Performing the actions predefined by failover planning, e.g. switching to standby network elements
-
- 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
- H04L65/10—Architectures or entities
- H04L65/1045—Proxies, e.g. for session initiation protocol [SIP]
-
- 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
- H04L65/1083—In-session procedures
-
- 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
- H04L65/60—Network streaming of media packets
- H04L65/65—Network streaming protocols, e.g. real-time transport protocol [RTP] or real-time control protocol [RTCP]
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M7/00—Arrangements for interconnection between switching centres
- H04M7/006—Networks other than PSTN/ISDN providing telephone service, e.g. Voice over Internet Protocol (VoIP), including next generation networks with a packet-switched transport layer
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- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Business, Economics & Management (AREA)
- General Business, Economics & Management (AREA)
- Telephonic Communication Services (AREA)
- Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
- Data Exchanges In Wide-Area Networks (AREA)
Abstract
The present invention discloses a telephone conference seamless switching method for the switching control of conference multimedia data between two media servers. The method comprises the steps that: (a) a conference management center receives the conference request of a conference participant IP phone, establishing a telephone conference service, (b) the conference participant IP phone sends multimedia data to the conference proxy port of the conference management center, and the conference proxy port sends the received conference media data to a first multimedia server for processing; (c) when the service of the first multimedia server is abnormal, the conference management center carries out conference switching and sends received new conference media data to a second multimedia server for processing. Through the scheme of the invention, the restarting of a conference and the notification of a larger number of users to join the conference caused by the problems of server failure and the like are not needed, thus the flexibility of conference service realization is enhanced, and the networking capacity is improved.
Description
Technical field
The invention belongs to the control management technique in Internet telephony field, more particularly, to network telephone conference.
Background technology
Voip(voice over ip) also known as ip phone or the ip networking telephone, this technology is by entering to voice signal
Row coding digitized, compression are processed into condensed frame, are then converted into ip packet and are transmitted on ip network, thus reaching
The purpose of voice communication is carried out on ip network.The utilization rate that ip phone significantly improves the network bandwidth exists, and greatly reduces
The expense of communication, its extensive application also promotes the development of wideband multimedia application.
Additionally, with the development of ip technology, ip video conference has become as the important communication way of people's routine work.
It, only need to be by the Internet, you can realize teleconference, the office of efficient high definition by advanced mechanics of communication.Ip video council
View persistently lifted user's communication efficiency, reduction enterprise traveling expense cost, improve the aspects such as management performance have richly endowed by nature
Advantage, part replace commercial affairs trip, become telecommuting newest mode.
But in existing ip video conference application, conference process occurs that Conference server service is unavailable or delays often
The consequences such as machine, thus significantly impact work and the life of user.It is currently based on the Conference server of sip standard implementation, structure
As shown in figure 1, all of ip phone is all independently transmitted rtp flows to Conference server, Conference server can be to each road rtp stream gravity
New decoding coding mass-sends everyone in meeting-place.Although so design organization functions of modules is independently clear, this designed
Degree depends on videoconference server, and the whole meeting when this server fail will be forced to interrupt.
Content of the invention
It is an object of the invention to provide a kind of videoconference seamless handover method, for solving multiple video server portions
Under the videoconference environment of administration's service, in the case of a multimedia server is disabled, will be on this multimedia server
Meeting seamlessly switch on another available multimedia server, and under normal circumstances not in other multimedia services
Device produces redundancy conferencing data.
In order to realize foregoing invention purpose, technical scheme is as follows:
A kind of videoconference seamless handover method, for switching control between at least two media servers for the meeting multi-medium data
System, the method includes: step a, conference management center accept the request for conference of meeting participant side ip phone, sets up videoconference clothes
Business；Multi-medium data is sent to the meeting proxy port at conference management center, meeting proxy port by step b, participant side's ip phone
Then the meeting receiving multi-medium data is sent and processed to the first multimedia server；Step c, the first multimedia service
When device service is abnormal, conference management center carries out meeting switching, and the new meeting multi-medium data receiving is sent to second
Multimedia server is processed.
Preferably, in above-mentioned steps a, set up conference call service and include setting up conferencing information, that is, by conference management center
Record meeting id, participant number, participant's list.
Preferably, changing method also includes the detection of heart beating keepalive mechanism it may be assumed that above-mentioned each multimedia server is distinguished
Send tcp bag to conference management center, do not receive described tcp bag when described conference management center exceedes certain time threshold value,
Then show there is above-mentioned media server extremely.
Preferably, above-mentioned first multimedia server refers to that described conference management center does not have in described time threshold extremely
Receive corresponding tcp bag.
Preferably, when the first multimedia server service is abnormal, above-mentioned conference management center is by the new meeting receiving
View multi-medium data rtp stream sends and is processed to the second multimedia server.
Preferably, above-mentioned changing method plays smoothness to ensure media data, and conference management center is each participant
Member sets up buffer queue, and the data of this queue storage is the redundancy multi-medium data in heart beating inter-packet gap, in above-mentioned steps c,
When described first multimedia server is abnormal, conference management center can will prestore described in redundancy multi-medium data send out
Deliver to the second multimedia server.
Preferably, also include after step c: the first multimedia server is deleted from log-on message by conference management center,
Until the conference service of described media server restarts, re-register.
A kind of present invention videoconference seamless handover method is greatly saved the time of user and loaded down with trivial details step, for
User perception transparent, will not because of server delay machine the problems such as need to reopen meeting, again notify substantial amounts of user's membership.
Consumer's Experience is enhanced by the present invention program, improves the versatility of equipment, increased the motility of business realizing, improve
Networking capability.
Brief description
Fig. 1 is specific embodiment of the invention networking legend；
Fig. 2 is specific embodiment of the invention cluster conference system signalling interactive process figure；
Fig. 3 is specific embodiment of the invention cluster conference system media interaction figure；
Fig. 4 for specific embodiment of the invention cluster conference system delay machine when signalling interactive process figure；
Fig. 5 for specific embodiment of the invention cluster conference system delay machine when media interaction figure.
Specific embodiment
The ultimate principle of the present invention: registered in conference management central side using multiple multimedia servers, each multimedia
Server and meeting administrative center set up heartbeat mechanism, when there being meeting to open in multimedia server, to conference management center
Report relevant information.The meeting agency service that user's all of rtp stream passes through conference management center turns to real offer meeting clothes
The multimedia server of business.These information are saved in data base db (data base) at conference management center.Once it is original
Multimedia server is unavailable, and conference management center uses saved conferencing data, on another multimedia server
Start this meeting, and the rtp stream switching in meeting agency service is transmitted to the new Conference server starting.
Based on existing server architecture mode, unavailable if there is server failure in conference process, this many matchmaker
Know from experience view to will be unable to proceed, user only re-creates meeting room, again call participant side.The present invention program overcomes existing
There is the deficiency of technology, user need not re-create meeting and also can continue conferencing function.
In order to be illustrated more clearly that the technical scheme of present example, below in conjunction with exemplary plot, the enforcement of the present invention is entered
The detailed introduction of row, explained below is only some embodiments of the present invention.It should be appreciated that described herein be embodied as
Example, only in order to explain the present invention, is not intended to limit the present invention.For those of ordinary skill in the art, do not paying wound
The other embodiment of the present invention on the premise of the property made work, can also be obtained according to these embodiments.
The specific embodiment of the invention provides multimedia server a in the case of running into the unavailable or machine of delaying of service, leads to
Cross conference management center to start multimedia server b to provide conference service, complete rtp stream from multimedia server a to many matchmakers
The transmission switching of body server b, thus realize the seamless switching of meeting.
The multimedia of the specific embodiment of the present invention includes: audio frequency or video and other can prop up in conference system
Other medium types that support uses.The embodiment of the present invention is based on sip(session initial protocol) agreement and rtp
(real-time transport protocol) protocol realization videoconference communicates.
The multimedia server administrative mechanism of the present invention: the media server in all regions is using the mode registered in meeting
View administrative center is registered, the ip of conference management each multimedia server of central record.Conference management center will be with simultaneously
Each sets up heart beating keepalive mechanism in the multimedia server of conference management center registration, in time detection multimedia server
Service state.
Specific embodiment one
In the whole embodiment of the present invention, provide the support of audio and video medium stream, principle is identical, do not do special differentiation
Explanation.
Fig. 2 is specific embodiment of the invention cluster conference system signalling interactive process figure.Fig. 3 is the specific embodiment of the invention
Cluster conference system media interaction figure.As shown in Figure 2 and Figure 3, in the specific embodiment of the invention, the multimedia meeting that provides
Negotiation media flow management method mainly includes following operating process:
Step 110: meeting initiator's ip phone 1 adds video conferencing system it is assumed that now providing clothes by multimedia server a
Business, major function includes: audio mixing, folds screen, recording etc..
Step 120: conference management central record meeting relevant information in data base db, such as meeting id, the number of participation,
The information such as participant's list.
Data base db herein is the storage center of whole conference system.The note of multimedia conferencing is responsible at conference management center
Volume management, user's registration manages, and meeting multimedia server selects, sip signalling relay, and rtp Media Stream relays, and conferencing information is remembered
Record, the function such as disaster tolerance meeting transfer.
Step 130: rtp stream is sent to the meeting agency service port at conference management center by meeting initiator's ip phone 1.
In the specific embodiment of the invention, ip phone is all registered in conference management center, is responsible for selecting specifically to make by it
With which multimedia server and sending port.In addition, in existing videoconference setting, enabling the present invention if necessary
Scheme, ip phone needs to change registrar, and all account numbers are managed by server, then are sent to by meeting proxy port
Multimedia server a.It is configured with multiple multimedia server a/b etc., when user opens in the data base db at conference management center
During new meeting, administrative center uses load balancing to select multimedia server, is worked as using all multimedia servers
The less server of middle meeting number, and record meeting relation corresponding with multimedia server at data base db end.
Step 140: subsequently add participant side's ip phone of this meeting, conference management center will update the data in the db of storehouse
Conferencing information, forwards the rtp of participant side to flow to multimedia server a.
Delay with reference to a multimedia server a conference service abnormal end or server the concrete application field of machine
Scape. Fig. 4 for specific embodiment of the invention cluster conference system delay machine when signalling interactive process figure.Fig. 5 is embodied as the present invention
Example cluster conference system delay machine when media interaction figure.As shown in Figure 4, Figure 5, the specific embodiment of the invention two is to multimedia meeting
The method of view seamless switching is specifically described.
Step 210: multimedia server a cannot provide conference service due to unknown cause, as shown in figure 4, multimedia clothes
Business device a and conference centre are unable to normal communication, interrupt existing conference service.
Step 220: conference management detects multimedia server a service stopping centrally through heart beating keepalive mechanism.At this
In invention specific embodiment, described heart beating keepalive mechanism refers to all multimedia servers in the registration of conference management central side
Timing is sent to tcp bag, generally uses only the empty of tcp packet header and wraps, conference management center real-time detection, if it exceeds necessarily
Time (such as 5-6 second) does not receive this tcp heartbeat packet, then judge that this multimedia server is unavailable.
Step 230: conferencing information migration, the multimedia server a that conference management center will store in data base db before
Upper all meeting relevant informations are sent to multimedia server b end.
Above-mentioned all of correlation conferencing information refers to: a opening on multimedia server a, the correlation of b, c, d meeting
Information, meeting is numbered, participant id.And other conferencing informations such as meeting presider, meeting region, conference status etc. are by meeting
View controls related server admin, so not sending.If multimedia server b cannot load so much meeting, its meeting
Return corresponding miscue to conference management center, conference management center reselects another multimedia clothes according to feedback result
Business device.
In the present invention, all of conferencing information includes participant side's information, and meeting is numbered, meeting number, and meeting is located many
The information such as media server are by conference management central record in conference system data base db.Multimedia server a/b provides
Audio mixing, the folded media-related functions such as screen, teletext, conference management center provides sip signalling relay, rtp Media Stream relaying, holds
Calamity meeting forwarding function.The division of whole conference system, relieves the close coupling between user and multimedia server, compares
Traditional conference service system, decreases the dependence to multimedia server for the user, in the disabled feelings of current media server
Can smooth under shape, transparent be transitioned into another multimedia server.
Step 240: multi-medium data hand-off process, the conference service at conference management center is acted on behalf of the use being currently received
Rtp circulation in family is dealt into multimedia server b, then provides whole conference service by multimedia server b, including media transmission,
Audio mixing, folds screen etc..After multimedia server b have received the multi-medium datas such as audio frequency from conference management center, video, carry out
Audio mixing, folded screen process and are then forwarded to conference management center, are forwarded to the ip phone of each participant side by conference management center.This portion
The step content divided may be referred to as shown in Figure 5.
Cannot know without the data having processed because breaking down for multimedia server a, these data
It is switched to later during new multimedia server and can select to ignore.Certainly from optimization angle, this can be carried out with experience
Optimization in the range of value, prioritization scheme is: in the media data of conference management center redundant storage 4-5 second, once multimedia clothes
Device a is unavailable for business, and this redundant media data can be by the multimedia service by conference management center controlling transmission to new switching
On device b, so ensure that the smoothness of Voice ＆ Video to a certain extent.
The above-mentioned principle of optimality is to be based on: in conference process, all participants send media data to conference management center
Afterwards, buffer queue is set up for each participant in conference management center, and the data of queue storage is all matchmakers in heart beating inter-packet gap
Volume data.In addition, because the heartbeat packet of multimedia server can be received at interval of 5-6 second conference management center, depositing every time
Storage is about the media data of 5 seconds, and receive heartbeat packet shows that this multimedia server is normal.In normal multimedia server
In the case of a is available, the redundant data that conference management center directly empties buffer queue continues to store the media number at next interval
According to, when heartbeat mechanism detect multimedia server a unavailable after, all buffer queues will retain, the follow-up media number of user
According to buffer queue also will be write, new multimedia server b will be sent to after meeting transfer success.
Step 250: the conferencing information that conference management center changes in data base db in multimedia server a is in multimedia
On IMS conference medium server b.
Step 260: multimedia server a is deleted from log-on message by conference management center, until multimedia server a
Conference service restart, re-register.As long as herein restart the service startup meeting referring on multimedia server a
View service system, first thing is exactly to register it is not necessary to extra user's incoming call to trigger to conference management center.
Step 270: conference management center by multimedia server a service exception or server delay machine information notify to
Meeting Surveillance center, is then processed by Surveillance center.
By aforesaid operations step, Jiang Yitai cannot provide all meetings on the multimedia server of service to be transferred to
On another normal multimedia server, and whole process is transparent for a user, all in conference process
Video flowing, audio stream all normally forward transmission, the service abnormal user perceptibility of original multimedia server is zero, really real
Show the seamless switching in conference process, greatly strengthen Consumer's Experience.
The foregoing is only presently preferred embodiments of the present invention, not in order to limit the present invention, all essences in the present invention
Any modification, equivalent and improvement made within god and principle etc., should be included within the scope of the present invention.
Claims (10)
1. a kind of videoconference seamless handover method, for switching between at least two media servers for the meeting multi-medium data
Control it is characterised in that described changing method includes:
Step a, conference management center accept the request for conference of meeting participant side ip phone, set up conference call service；
Multi-medium data is sent to the meeting proxy port at described conference management center by step b, described participant side ip phone, described
The meeting receiving multi-medium data is then sent and is processed to the first multimedia server by meeting proxy port；
When step c, described first multimedia server service are abnormal, described conference management center carries out meeting switching, will receive
To new meeting multi-medium data send and processed to the second multimedia server.
2. method according to claim 1 is it is characterised in that in described step a, described conference call service of setting up includes
Set up conferencing information, that is, by described conference management central record meeting id, participant number, participant's list.
3. method according to claim 2 is it is characterised in that in described step c, when described first multimedia server clothes
When business is abnormal, described conference management center sends the new meeting multi-medium data rtp stream receiving to described matchmaker more than second
Body server is processed.
4. method according to claim 3 is it is characterised in that described changing method also includes the inspection of heart beating keepalive mechanism
Survey it may be assumed that described each multimedia server sends heartbeat packet to described conference management center respectively, i.e. tcp bag, when described meeting pipe
Reason center exceedes certain time threshold value and does not receive described tcp bag, then show there is described multimedia server extremely.
5. method according to claim 4 is it is characterised in that described first multimedia server refers to described meeting extremely
Administrative center does not receive corresponding tcp bag in described time threshold.
6. method according to claim 5 is it is characterised in that in described step c, described meeting switching also includes described meeting
The modification to described conferencing information for the view administrative center.
7. method according to claim 6 is it is characterised in that described changing method is in order to ensure multi-medium data play stream
Freely, buffer queue is set up for each participant in described conference management center, and the data of described queue storage is described heartbeat packet
Redundancy multi-medium data in interval, in described step c, when described first multimedia server is abnormal, described meeting pipe
Reason center can will prestore described in redundancy multi-medium data send to described second multimedia server.
8. method according to claim 7 is it is characterised in that also include after described step c: described conference management center will
Described first multimedia server is deleted from log-on message, until conference service restarts, re-registers.
9. the method according to right 8 is it is characterised in that described first multimedia server and described second multimedia service
Device provides and includes: media transmission, audio mixing, folded screen.
10. the method according to right 9 is it is characterised in that described conference management center provides sip signalling relay, rtp media
Stream relaying, disaster tolerance meeting transfer.
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| CN201610837424.2A CN106341409A (en) | 2016-09-21 | 2016-09-21 | Telephone conference seamless switching method |
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| CN201610837424.2A CN106341409A (en) | 2016-09-21 | 2016-09-21 | Telephone conference seamless switching method |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108323233A (en) * | 2017-03-15 | 2018-07-24 | 深圳市台电实业有限公司 | A kind of double copies conference device and double copies conference system |
| CN108668101A (en) * | 2018-08-08 | 2018-10-16 | 广州视源电子科技股份有限公司 | video conference method, device and system |
| CN110557598A (en) * | 2019-09-18 | 2019-12-10 | 天津卓朗科技发展有限公司 | Video conference scheduling method and related device |
| CN110798650A (en) * | 2019-09-24 | 2020-02-14 | 福建星网智慧科技股份有限公司 | Multi-system media stream transmission control method and device based on RTP |
| CN113055539A (en) * | 2021-03-09 | 2021-06-29 | 南京莱斯电子设备有限公司 | Communication system based on VoIP dual-redundancy exchange server |
| CN115550324A (en) * | 2022-09-23 | 2022-12-30 | 广州市保伦电子有限公司 | Automatic conference mode switching method, device, storage medium and system |
| WO2023045848A1 (en) * | 2021-09-22 | 2023-03-30 | 维沃移动通信有限公司 | Call processing method and call processing apparatus |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101510884A (en) * | 2009-03-26 | 2009-08-19 | 华为技术有限公司 | Multimedia conference management method, network device and network system |
| CN101771954A (en) * | 2009-12-28 | 2010-07-07 | 东方通信股份有限公司 | Method for realizing conference function in dispatching subsystem of wireless clustered system |
| US20100238842A1 (en) * | 2009-03-19 | 2010-09-23 | Microsoft Corporation | Phone conferencing architecture with optimized services management |
| CN102868774A (en) * | 2012-08-27 | 2013-01-09 | 苏州阔地网络科技有限公司 | Method and system for implementing network meeting drift |
| CN106341410A (en) * | 2016-09-22 | 2017-01-18 | 深圳市潮流网络技术有限公司 | IP phone with integration of third-party application and method |
-
2016
- 2016-09-21 CN CN201610837424.2A patent/CN106341409A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20100238842A1 (en) * | 2009-03-19 | 2010-09-23 | Microsoft Corporation | Phone conferencing architecture with optimized services management |
| CN101510884A (en) * | 2009-03-26 | 2009-08-19 | 华为技术有限公司 | Multimedia conference management method, network device and network system |
| CN101771954A (en) * | 2009-12-28 | 2010-07-07 | 东方通信股份有限公司 | Method for realizing conference function in dispatching subsystem of wireless clustered system |
| CN102868774A (en) * | 2012-08-27 | 2013-01-09 | 苏州阔地网络科技有限公司 | Method and system for implementing network meeting drift |
| CN106341410A (en) * | 2016-09-22 | 2017-01-18 | 深圳市潮流网络技术有限公司 | IP phone with integration of third-party application and method |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108323233A (en) * | 2017-03-15 | 2018-07-24 | 深圳市台电实业有限公司 | A kind of double copies conference device and double copies conference system |
| CN108323233B (en) * | 2017-03-15 | 2021-01-01 | 深圳市台电实业有限公司 | Double-backup conference unit and double-backup conference system |
| CN108668101A (en) * | 2018-08-08 | 2018-10-16 | 广州视源电子科技股份有限公司 | video conference method, device and system |
| CN110557598A (en) * | 2019-09-18 | 2019-12-10 | 天津卓朗科技发展有限公司 | Video conference scheduling method and related device |
| CN110798650A (en) * | 2019-09-24 | 2020-02-14 | 福建星网智慧科技股份有限公司 | Multi-system media stream transmission control method and device based on RTP |
| CN113055539A (en) * | 2021-03-09 | 2021-06-29 | 南京莱斯电子设备有限公司 | Communication system based on VoIP dual-redundancy exchange server |
| CN113055539B (en) * | 2021-03-09 | 2022-07-05 | 南京莱斯电子设备有限公司 | Communication system based on VoIP dual-redundancy exchange server |
| WO2023045848A1 (en) * | 2021-09-22 | 2023-03-30 | 维沃移动通信有限公司 | Call processing method and call processing apparatus |
| CN115550324A (en) * | 2022-09-23 | 2022-12-30 | 广州市保伦电子有限公司 | Automatic conference mode switching method, device, storage medium and system |
| CN115550324B (en) * | 2022-09-23 | 2023-09-08 | 广东保伦电子股份有限公司 | Automatic switching method, device, storage medium and system for conference modes |
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