WO2012126336A1 - Procédé et système pour offrir une fonction de conférence téléphonique pour un terminal courant - Google Patents

Procédé et système pour offrir une fonction de conférence téléphonique pour un terminal courant Download PDF

Info

Publication number
WO2012126336A1
WO2012126336A1 PCT/CN2012/072461 CN2012072461W WO2012126336A1 WO 2012126336 A1 WO2012126336 A1 WO 2012126336A1 CN 2012072461 W CN2012072461 W CN 2012072461W WO 2012126336 A1 WO2012126336 A1 WO 2012126336A1
Authority
WO
WIPO (PCT)
Prior art keywords
media gateway
control information
terminal
state
conference call
Prior art date
Application number
PCT/CN2012/072461
Other languages
English (en)
Chinese (zh)
Inventor
王志伟
Original Assignee
中兴通讯股份有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 中兴通讯股份有限公司 filed Critical 中兴通讯股份有限公司
Publication of WO2012126336A1 publication Critical patent/WO2012126336A1/fr

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M7/00—Arrangements for interconnection between switching centres
    • H04M7/12—Arrangements for interconnection between switching centres for working between exchanges having different types of switching equipment, e.g. power-driven and step by step or decimal and non-decimal
    • H04M7/1205—Arrangements for interconnection between switching centres for working between exchanges having different types of switching equipment, e.g. power-driven and step by step or decimal and non-decimal where the types of switching equipement comprises PSTN/ISDN equipment and switching equipment of networks other than PSTN/ISDN, e.g. Internet Protocol networks
    • H04M7/125—Details of gateway equipment
    • H04M7/1255—Details of gateway equipment where the switching fabric and the switching logic are decomposed such as in Media Gateway Control
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/02—Details
    • H04L12/16—Arrangements for providing special services to substations
    • H04L12/18—Arrangements for providing special services to substations for broadcast or conference, e.g. multicast
    • H04L12/1813—Arrangements for providing special services to substations for broadcast or conference, e.g. multicast for computer conferences, e.g. chat rooms
    • 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
    • H04L65/102—Gateways
    • H04L65/1023—Media gateways
    • H04L65/103—Media gateways in the network
    • 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
    • H04L65/4046—Arrangements for multi-party communication, e.g. for conferences with distributed floor control
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M3/00—Automatic or semi-automatic exchanges
    • H04M3/42—Systems providing special services or facilities to subscribers
    • H04M3/56—Arrangements for connecting several subscribers to a common circuit, i.e. affording conference facilities

Definitions

  • the present invention relates to the field of communication technologies, and in particular, to a method and system for providing conference call functions for an ordinary terminal.
  • Conference calls are an ideal means of communication that improves communication, improves decision making, saves time, and reduces transportation costs.
  • conference calls have been widely used: regular meetings and ad hoc meetings between government agencies at various levels, companies with branch offices or factories in the field, discussion decisions between branches, weekly meetings and training Learn and so on.
  • Terminals with conference call functions (such as conference phones) are important voice communication devices for company conference rooms, and are a powerful tool for cross-departmental and cross-regional conferences.
  • Conference calls can be used to conveniently hold conferences, complete conferences, discussions, training, and learning.
  • NGN Next Generation Network
  • the technical problem to be solved by the present invention is to provide a method and system for providing a conference call function for an ordinary terminal, which can implement the function of a conference call on an ordinary terminal.
  • the present invention provides a method for providing a conference call function for an ordinary terminal, including:
  • the media gateway controller provides the terminal with the corresponding control function of the conference call according to the control information sent by the terminal.
  • control information is transmitted by selecting a corresponding control function key on the terminal.
  • control function key includes a combination of a specific number key and a "#" key on the terminal; the media gateway controller notifies the media gateway to report the received one by one when the conference call is initiated. And the media gateway reports the number key selected by the terminal and the “#” key to the media gateway controller one by one.
  • control information includes: microphone mute control information
  • the media gateway controller After receiving the control information, the media gateway controller implements a microphone mute control function for the terminal by modifying a state of a real time transmission protocol (RTP) media of the conference phone or a state of the terminal user.
  • RTP real time transmission protocol
  • the microphone mute control information further includes: turning on mute and turning off mute; after receiving the control information for turning on the mute, the media gateway controller notifying the media gateway to set the state of the RTP of the conference call or the The state of the terminal user is modified to receive only the state; after receiving the control information for turning off the mute, the media gateway controller notifies the media gateway to modify the state of the RTP of the conference phone or the state of the terminal user to be sent and received. status.
  • control information includes: volume adjustment control information
  • the media gateway controller After receiving the control information, the media gateway controller implements a volume adjustment control function for the terminal by adjusting the gain of the terminal user.
  • the volume adjustment control information further includes: increasing a volume and decreasing a volume; and after receiving the control information for increasing the volume, the media gateway controller notifying the media gateway to increase the gain of the terminal user;
  • the media gateway controller After receiving the control information for reducing the volume, the media gateway controller notifies the media gateway to reduce the gain of the terminal user.
  • the media gateway controller notifies the media gateway to increase or decrease the gain of the terminal user by using a specific value of tdmc/gain in the modified (MODIFY) message.
  • the present invention also provides a system for providing a conference call function for a general terminal, the system including a function selection unit in the terminal, and a control unit in the media gateway controller,
  • the function selection unit is configured to: send corresponding control information according to a control function key on the selected terminal; wherein the control information includes microphone mute control information, and/or volume adjustment Control information
  • the control unit is configured to: provide a corresponding control function of the conference call for the terminal according to the control information sent by the terminal during the conference call.
  • the system further includes an execution unit in the media gateway, and the control function key includes a combination of a specific number key and a "#" key on the terminal;
  • the control unit is further configured to: notify the media gateway to receive the number one by one when the conference call is initiated;
  • the execution unit is configured to: report the number key selected by the terminal and the “#” key to the media gateway controller one by one according to the notification of the report number of the control unit.
  • the microphone mute control information further includes: turning on mute and turning off mute;
  • the control unit is configured to: after receiving the control information for turning on the mute, notify the media gateway to set the state or location of the RTP of the conference call The state of the terminal user is modified to receive only the state; after receiving the control information for turning off the mute, the media gateway is notified to modify the state of the RTP of the conference phone or the state of the terminal user to a sending and receiving state;
  • the execution unit is further configured to: modify the state of the RTP of the conference phone or the state of the terminal user to a reception only state or a transmission reception state according to the modification status notification of the control unit.
  • the volume adjustment control information further includes: increasing a volume and decreasing a volume; the control unit is configured to: after receiving the control information for increasing the volume, notify the media gateway to increase the gain of the terminal user; After receiving the control information for reducing the volume, notifying the media gateway to reduce the gain of the terminal user;
  • the execution unit is further configured to: increase or decrease the gain of the end user according to a gain modification notification of the control unit.
  • the embodiment of the invention provides a solution for providing some professional conference telephone terminal functions for an ordinary terminal, which is simple in operation and easy to implement.
  • the ordinary terminal can also perform conference calls in the NGN network, thereby avoiding the high cost required for the user to purchase a professional conference telephone.
  • FIG. 1 is a schematic diagram of networking of a conference call by means of (removing or adding an MS) in an NGN network
  • FIG. 2 is a flowchart of an MGC control MG implementing a microphone mute function according to an embodiment of the present invention
  • FIG. 3 is an MGC control according to an embodiment of the present invention
  • the core idea of the present invention is to implement the functions of the conference phone terminal on an ordinary terminal, which specifically includes: a microphone mute function and a volume adjustment function.
  • the purpose of the microphone mute function is to only listen to other people's calls during the conference call, so that the participants have a private discussion space, which can be controlled by the end user or RTP (Real-time Transport Protocol) media.
  • the transceiver mode and the like are implemented; and the volume adjustment function can be implemented by modifying the transmission gain of the MG with respect to the user or the gain of the RTP packet encoding and decoding.
  • the present invention provides a method for providing a conference call function for an ordinary terminal, and specifically adopts the following technical solutions:
  • the media gateway controller provides the terminal with the corresponding control function of the conference call according to the control information sent by the terminal.
  • control information is issued by selecting a corresponding control function key on the terminal.
  • control function key includes a combination of a specific number key and a "#" key on the terminal;
  • the media gateway controller notifies the media gateway to report the received number one by one when the conference call starts, and the media gateway reports the received number key and the "#" key of the terminal one by one to the media gateway.
  • the media gateway controller notifies the media gateway to report the received number one by one when the conference call starts, and the media gateway reports the received number key and the "#" key of the terminal one by one to the media gateway.
  • control information includes: microphone mute control information; After the media gateway controller receives the control information, by modifying the conference call
  • the RTP state or the state of the end user, implements a microphone mute control function for the terminal.
  • the microphone mute control information further includes: turning on mute and turning off mute; after receiving the mute control information, the media gateway controller notifying the media gateway to set the RTP state of the conference phone, or the The state of the terminal user is modified to receive only the state; after receiving the control information for turning off the mute, the media gateway controller notifies the media gateway to modify the RTP state of the conference phone or the state of the terminal user to be sent and received. status.
  • control information includes: volume adjustment control information
  • the media gateway controller After receiving the control information, the media gateway controller implements a volume adjustment control function for the terminal by adjusting the gain of the terminal user.
  • the microphone mute control function further includes: increasing a volume and decreasing a volume; and after receiving the control information for increasing the volume, the media gateway controller notifying the media gateway to increase the gain of the terminal user;
  • the media gateway controller After receiving the control information for reducing the volume, the media gateway controller notifies the media gateway to reduce the gain of the terminal user.
  • the media gateway controller notifies the media gateway to increase or decrease the gain of the terminal user by using a specific value of tdmc/gain (a gain control characteristic in the TDM circuit packet) in the transmitted MODIFY message.
  • the conference resources are usually provided through the media server (MS).
  • the participants of other conference phones pass their respective media gateways.
  • MG media gateways.
  • Control of the MS and the MG is implemented through a Media Gateway Controller (MGC).
  • the present invention mainly relates to the core components of two NGN networks, MGC and MG.
  • the softswitch provides logical control, and the media access gateway implements specific functions.
  • a media gateway controller controls a media gateway (MG) to implement microphone mute and volume adjustment.
  • the user operation is very simple. Press “1#” to turn the mute function on/off during the conference call. When the conference call is connected, the mute function is disabled by default. Press “1#” to turn on the function, then press “1#” to close. . Press “2#” to increase the volume and "3#” to decrease the volume.
  • FIG. 2 is a flow chart showing a method for providing a microphone mute function in a conference call for a general telephone terminal user according to an embodiment of the present invention. As shown in FIG. 2, the method includes the following steps:
  • Step S201 This process starts.
  • Step S202 Under the control of the MGC, the MG adds the user USER1 to a conference on the MS, and the media resource allocated to the USER1 on the MG is RTP1.
  • Step S203 the MGC notifies the MG to receive the number by bit
  • the step of the step is as follows: After the MGC modifies the remote attribute of the RTP1 and connects to the conference resource on the MS, the MG is notified by the MODIFY (Modify) message and the report is sent one by one after receiving the number.
  • MODIFY Modify
  • the example signaling is as follows:
  • the transaction ID (Transaction1D) is 123456789
  • the association ID (ContextlD) is 123
  • the event request ID (RequestlD) is 987654321.
  • step S204 when USER1 needs to use the mute function, press "1#", and the MG receives the number and reports it to the MGC one by one through the NOTIFY message.
  • Step S205 the MGC notifies the MG to change the RTP to receive only; Specifically, the MGC may notify the MG to modify the state of the RTP1 to receive only ReceiveOnly by using the MODIFY message after receiving the "1#" of the USER1.
  • the signaling is as follows:
  • This signaling is to modify the state of RTP1 to receive only, where MO is Mode and RC is RecieveOnly.
  • This signaling is also a transaction, the transaction ID is 123456790, the content of the transaction is in the context (Context) 123, the mode (MO) of RTP1 is modified to receive only (RC).
  • Step S206 when USER1 wants to turn off the mute function, press "1#" again, and the MG receives the number and reports it to the MGC one by one through the NOTIFY message.
  • Step S207 the MGC notifies the MG to change the RTP to send and receive;
  • the MGC After receiving the "1#" of USER1, the MGC notifies the MG through the MODIFY message.
  • RTP1 The state of RTP1 is modified to send and receive SendReceive (or modify the state of USER1 to SendReceive) signaling as follows:
  • Step S208 the process ends.
  • step S204 can be repeated.
  • FIG. 3 is a flow chart showing a method for providing a volume adjustment function for a general telephone user according to an embodiment of the present invention. As shown in FIG. 3, the flow includes the following steps:
  • Step S301 This process starts.
  • Step S303 When USER1 needs to increase the volume, press "2#", and the MG receives the number and reports it to the MGC one by one through the NOTIFY message.
  • USER1 is the user identifier. It should be noted that in the present invention, when tdmc/gain is used as a user identifier, it indicates the transmission gain of the MG with respect to the user, and when acting on the media identifier, it indicates the gain when the RTP packet is transmitted. The definition in the protocol is not clear enough. If the system considers that tdmc/gain acts on the user ID and indicates that the MG sends the RTP gain, you can modify the gain of the media packet by the MS to adjust the volume of the user.
  • Step S305 The MG adjusts the user gain according to the MGC signaling. If the user needs to continue to increase the volume, step S303 is repeated.
  • Step S306 When USER1 needs to decrease the volume, press "3#", and the MG receives the number and reports it to the MGC one by one through the NOTIFY message.
  • Step S308 The MG adjusts the user gain according to the MGC signaling. If the user needs to continue to decrease the volume, step S306 may be repeated. Thereafter, the user can repeatedly adjust the volume by "2#" and "3#".
  • Step S309 the process ends.
  • the Megaco protocol in the foregoing embodiment may be controlled by a gateway having the same function as the SIP, such as SIP (Session Initiation Protocol) and MGCP (Media Gateway Control Protocol). Control Protocol) Protocol instead.
  • SIP Session Initiation Protocol
  • MGCP Media Gateway Control Protocol
  • Control Protocol Control Protocol
  • the status of the RTP media can be controlled by SDP;
  • the gain control parameter gc in the LocalConnectionOptions can be used to adjust the volume, using the Connection Mode to control Terminal The sending and receiving status of the household, etc.
  • the specific application of the present invention is not limited to conference calls, but also for three-party calls and the like.
  • the embodiment of the present invention further provides a system for providing a conference call function for an ordinary terminal, where the system mainly includes a function selection unit in the terminal, and a control unit in the media gateway controller, where
  • the function selection unit is configured to: send, according to a control function key on the selected terminal, corresponding control information; wherein the control information includes microphone mute control information, and/or volume adjustment control information;
  • the control unit is configured to, during the conference call, provide a corresponding control function of the conference call to the terminal according to the control information sent by the terminal.
  • system further includes an execution unit in the media gateway, and the control function key includes a combination of a specific number key and a "#" key on the terminal;
  • the control unit is further configured to: when the conference call is initiated, notify the media gateway to report the received number one by one;
  • the execution unit is configured to report the received number key and the "#" key of the terminal to the media gateway controller one by one according to the notification of the report number of the control unit.
  • the microphone mute control information further includes: turning on mute and turning off mute; the control unit is configured to: after receiving the control information for turning on mute, notify the media gateway to set the state or location of the RTP of the conference call The state of the terminal user is modified to receive only the state; after receiving the control information for turning off the mute, the media gateway is notified to modify the state of the RTP of the conference phone or the state of the terminal user to a sending and receiving state;
  • the execution unit is further configured to modify the state of the RTP of the conference phone or the state of the terminal user to a reception only state or a transmission reception state according to the modification status notification of the control unit.
  • the volume adjustment control information further includes: increasing a volume and decreasing a volume;
  • the control unit is configured to: after receiving the control information for increasing the volume, notify the media gateway to increase the gain of the terminal user; after receiving the control information for reducing the volume, notify the media gateway to decrease the terminal. User's gain;
  • the execution unit is further configured to increase or decrease the gain of the end user according to the gain modification notification of the control unit.
  • modules or steps of the present invention can be implemented by a general-purpose computing device, which can be concentrated on a single computing device or distributed over a network composed of multiple computing devices. Alternatively, they may be implemented by program code executable by the computing device, such that they may be stored in the storage device by the computing device and, in some cases, may be different from the order herein.
  • the steps shown or described are performed, or they are separately fabricated into individual integrated circuit modules, or a plurality of modules or steps are fabricated as a single integrated circuit module.
  • the invention is not limited to any particular combination of hardware and software.
  • the embodiment of the present invention provides a solution for providing a professional conference call terminal function for an ordinary terminal, which is simple in operation and easy to implement.
  • the ordinary terminal can also perform conference calls in the NGN network, thereby avoiding the high cost required for the user to purchase a professional conference telephone.

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Multimedia (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • General Engineering & Computer Science (AREA)
  • Telephonic Communication Services (AREA)

Abstract

L'invention porte sur un procédé et un système pour offrir une fonction de conférence téléphonique pour un terminal courant. Durant la conférence téléphonique, un contrôleur de passerelle multimédia (MGC) offre une fonction de commande correspondante de la conférence téléphonique pour un terminal conformément à des informations de commande envoyées par le terminal, les informations de commande contenant des informations de commande de coupure de microphone et/ou des informations de commande d'ajustement de volume. L'application de la présente invention permet au terminal courant de réaliser la fonction de conférence téléphonique en présentant une opération simple et une mise en œuvre aisée.
PCT/CN2012/072461 2011-03-18 2012-03-16 Procédé et système pour offrir une fonction de conférence téléphonique pour un terminal courant WO2012126336A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201110065439.9A CN102123212B (zh) 2011-03-18 2011-03-18 为普通终端提供会议电话功能的方法及系统
CN201110065439.9 2011-03-18

Publications (1)

Publication Number Publication Date
WO2012126336A1 true WO2012126336A1 (fr) 2012-09-27

Family

ID=44251660

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2012/072461 WO2012126336A1 (fr) 2011-03-18 2012-03-16 Procédé et système pour offrir une fonction de conférence téléphonique pour un terminal courant

Country Status (2)

Country Link
CN (1) CN102123212B (fr)
WO (1) WO2012126336A1 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102123212B (zh) * 2011-03-18 2015-08-12 中兴通讯股份有限公司 为普通终端提供会议电话功能的方法及系统
CN107306189A (zh) * 2016-04-21 2017-10-31 大唐移动通信设备有限公司 一种音频控制方法及媒体服务控制器、媒体服务器
CN109246626B (zh) * 2018-09-14 2021-12-28 青岛海信移动通信技术股份有限公司 一种语音对讲方法、系统及终端
CN114363458A (zh) * 2022-01-04 2022-04-15 北京金山云网络技术有限公司 设备控制方法、装置、存储介质以及电子设备

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1372416A (zh) * 2002-03-29 2002-10-02 武汉邮电科学研究院 基于软交换的视频会议系统多点控制器
CN1575574A (zh) * 2000-12-28 2005-02-02 英特尔公司 增强的媒介网关控制协议
CN1622572A (zh) * 2003-11-28 2005-06-01 华为技术有限公司 下一代网络中会议电话的实现方法
CN1852370A (zh) * 2006-02-18 2006-10-25 华为技术有限公司 一种指示终端设备呼叫状态的方法、系统及设备
CN1917537A (zh) * 2006-09-22 2007-02-21 华为技术有限公司 一种实现一键通业务的方法和系统
CN102123212A (zh) * 2011-03-18 2011-07-13 中兴通讯股份有限公司 为普通终端提供会议电话功能的方法及系统

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB0005426D0 (en) * 2000-03-08 2000-04-26 Ericsson Telefon Ab L M Signalling in a telecommunications network
CN101119506B (zh) * 2006-07-06 2010-12-22 北京艾易信息通信有限责任公司 基于移动终端的多方会议装置及方法
CN101141684B (zh) * 2007-08-14 2010-12-29 中兴通讯股份有限公司 一种实现音频业务静音处理控制的系统及方法
CN101651663A (zh) * 2008-08-14 2010-02-17 华为技术有限公司 信号增益控制方法、系统、媒体网关及其控制器
CN101969513A (zh) * 2010-09-26 2011-02-09 中兴通讯股份有限公司 电话会议的实现方法和系统

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1575574A (zh) * 2000-12-28 2005-02-02 英特尔公司 增强的媒介网关控制协议
CN1372416A (zh) * 2002-03-29 2002-10-02 武汉邮电科学研究院 基于软交换的视频会议系统多点控制器
CN1622572A (zh) * 2003-11-28 2005-06-01 华为技术有限公司 下一代网络中会议电话的实现方法
CN1852370A (zh) * 2006-02-18 2006-10-25 华为技术有限公司 一种指示终端设备呼叫状态的方法、系统及设备
CN1917537A (zh) * 2006-09-22 2007-02-21 华为技术有限公司 一种实现一键通业务的方法和系统
CN102123212A (zh) * 2011-03-18 2011-07-13 中兴通讯股份有限公司 为普通终端提供会议电话功能的方法及系统

Also Published As

Publication number Publication date
CN102123212B (zh) 2015-08-12
CN102123212A (zh) 2011-07-13

Similar Documents

Publication Publication Date Title
Camarillo et al. The session description protocol (SDP) grouping framework
US7359725B2 (en) Push-to-talk apparatus and method for communication between an application server and media resource function processor
US20120134301A1 (en) Wide area voice environment multi-channel communications system and method
WO2010003385A1 (fr) Procédé et appareil de commande de conférence multimédia par le serveur d'application
WO2012113193A1 (fr) Procédé et système de mise en œuvre de service d'appel multipartie
US20090290693A1 (en) Conveying call subject matter with voice data
US9854003B2 (en) System and method for initiating telecommunications sessions through an electronic mail address
WO2012126336A1 (fr) Procédé et système pour offrir une fonction de conférence téléphonique pour un terminal courant
JP2012015797A (ja) 電話交換装置及び電話端末及び電話システムで使用される制御方法
CN100546373C (zh) 多媒体视讯系统主叫呼集的实现方法
US8345669B1 (en) System and method for call transfer within an internet protocol communications network
CN103702295A (zh) 一种来电提醒的方法、装置及系统
WO2013040832A1 (fr) Procédé, dispositif et système permettant à l'opérateur d'insérer un appel dans un service de standard téléphonique
CN105491040A (zh) 基于sip协议的多方会议通话方法
CN102438084B (zh) 一种电话会议的实现方法及系统
JP4644813B2 (ja) 多者間通話システム、多者間通話システムにおける通話端末および通話サーバ、多者間通話方法
CN101594623A (zh) 一种互联网协议语音呼叫的监听方法及设备
CN102185828B (zh) 一种pc软件与sip ua绑定及控制的方法
TW200849951A (en) IP phone switchboard
CN101119212A (zh) 传递及应用用户-用户应用信息的方法和系统
US20180227342A1 (en) Media stream management system
KR100475187B1 (ko) 접속 설정 프로토콜 방식을 지원하는 키폰 시스템 및 그호 설정 방법
US9369497B1 (en) Communications system and related method for routing calls to a different destination
WO2013029389A1 (fr) Procédé et dispositif de réalisation d'un service de tonalité de retour d'appel personnalisée dans un service d'appel ctd
JP2006203324A (ja) ゲートウェイシステム

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 12759940

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 12759940

Country of ref document: EP

Kind code of ref document: A1