+

WO2011160345A1 - Procédé et système de transmission d'un signal multifréquence à deux tonalités hors bande sur la surface d'un support - Google Patents

Procédé et système de transmission d'un signal multifréquence à deux tonalités hors bande sur la surface d'un support Download PDF

Info

Publication number
WO2011160345A1
WO2011160345A1 PCT/CN2010/077157 CN2010077157W WO2011160345A1 WO 2011160345 A1 WO2011160345 A1 WO 2011160345A1 CN 2010077157 W CN2010077157 W CN 2010077157W WO 2011160345 A1 WO2011160345 A1 WO 2011160345A1
Authority
WO
WIPO (PCT)
Prior art keywords
dtmf
capability negotiation
uss
mgw
module
Prior art date
Application number
PCT/CN2010/077157
Other languages
English (en)
Chinese (zh)
Inventor
朱广亮
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 WO2011160345A1 publication Critical patent/WO2011160345A1/fr

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q3/00—Selecting arrangements
    • H04Q3/0016—Arrangements providing connection between exchanges
    • H04Q3/0029—Provisions for intelligent networking
    • H04Q3/0045—Provisions for intelligent networking involving hybrid, i.e. a mixture of public and private, or multi-vendor systems
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q3/00—Selecting arrangements
    • H04Q3/0016—Arrangements providing connection between exchanges
    • H04Q3/0025—Provisions for signalling
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/16—Communication-related supplementary services, e.g. call-transfer or call-hold

Definitions

  • the invention relates to a transmission method and system for a medium-band out-of-band dual-tone multi-frequency signal in a BICC network. Background technique
  • the Dual Tone Multi Frequency (DTMF) signal is a kind of user signaling between a telephone and a switch in a telephone system, and is usually used to transmit a called number.
  • DTMF Dual Tone Multi Frequency
  • a series of intermittent pulses are used in the telephone system to transmit the called number, called a pulse dial.
  • Pulse dialing requires an operator in the telecommunications office to manually complete the long distance connection.
  • the dual tone multi-frequency signal was invented by Bayer Laboratories for the purpose of automatically completing long distance calls.
  • the dual tone multi-frequency dial keypad is a 4 x 4 matrix, with each row representing a low frequency and each column representing a high frequency.
  • a combination of high frequency and low frequency sinusoidal signals is sent, such as ' ⁇ is equivalent to 697 and 1209 Hz ( ⁇ ).
  • the switch can decode these frequency combinations and determine the corresponding buttons.
  • the DTMF codec converts keystrokes or digital information into a two-tone signal and transmits it during encoding, and detects the presence of keystrokes or digital information in the received DTMF signal during decoding.
  • a DTMF signal consists of a superposition of audio signals at two frequencies. The frequency of these two audio signals comes from two sets of pre-assigned frequency groups: the line frequency group or the column frequency group. Each pair of such audio signals uniquely represents a number or symbol. There are usually 16 buttons in the phone, including 10 number keys 0 ⁇ 9 and 6 function keys *, #, A, B, C, D. Since there are generally 8 different single audio signals in accordance with the combination principle.
  • DTMF is also widely used in interactive controls such as language menus, language mail, telephone banking, and various Interactive Voice Response (IRR) processes.
  • IRR Interactive Voice Response
  • the bearing of the DTMF signal also changes. Similar to traditional circuit domain transmission, in IP network, DTMF (In Band DTMF) is transmitted in-band, and DTMF audio data packets are directly encapsulated and transmitted by RTP protocol without any codec conversion.
  • RFC2833 (RFC2833 is a specification file) defines another method for out-band DTMF (Out of Band DTMF). The media gateway detects DTMF and re-encodes the package using the RTP packet. Audio packet.
  • the RFC2833 out-of-band numbering mode can support the transmission and reception of multiple variable length button information.
  • the DTMF signals can also be directly transmitted by signaling.
  • the standard BICC protocol uses APM messages to transmit DTMF information directly on the signaling plane.
  • the Nc interface uses the Bearer Independent Call Control Protocol (BICC), and the IP Bearer Control Protocol (IPBCP) is used in the 3GPP R4 network based on the IP bearer network.
  • BICC Bearer Independent Call Control Protocol
  • IPBCP IP Bearer Control Protocol
  • Bearer Control Protocol As the control plane protocol for the Nb interface (media side), the standard IPBCP protocol defines some negotiation rules for the basic capabilities required for media transmission, but does not provide a control negotiation method for the transmission of out-of-band key information on the Nb interface. Summary of the invention
  • the technical problem to be solved by the present invention is to provide a method and system for transmitting out-of-band dual-tone multi-frequency signals in a medium to realize OFDM transmission of DTMF signals in the media plane of a BICC network.
  • the present invention provides a method for implementing multi-tone dual-frequency signal transmission of a medium out-of-band medium, the method comprising:
  • a mobile switching center transmits a dual tone multi-frequency (DTMF) capability negotiation information of a media gateway (MGW) to a USS through a control channel;
  • DTMF dual tone multi-frequency
  • the USS processes the DTMF capability negotiation information, and sends the DTMF capability negotiation result to the MGW through the control channel;
  • the USS establishes a media channel with the MGW according to the DTMF capability negotiation result, and transmits the DTMF signal out-of-band through the media channel.
  • the step of the MSC transmitting the DTMF capability negotiation information of the MGW to the USS by using the control channel includes:
  • the MSC sends the BICC signaling of the IPBCP message to the application server (AS), where the IPBCP message carries the DTMF capability negotiation information of the MGW;
  • the AS receives the BICC signaling of the load IPBCP message, and sends a SIP protocol message to the USS, where the DTMF capability negotiation information of the MGW is carried.
  • the steps of transmitting the DTMF signal out of band through the media channel include:
  • the MGW encodes the received DTMF signal according to the capability negotiation result and sends the DTMF signal to the USS through the established media channel;
  • the USS receives the encoded DTMF signal, and decodes the encoded DTMF signal according to the capability negotiation result.
  • the method further includes: the AS sending a SIP message to the USS, indicating that the USS plays a sound;
  • the media channel sends a media stream to the MGW.
  • the BICC network is a 3GPP R4 network.
  • the present invention also provides a transmission system for an out-of-band multi-tone dual-frequency signal, which is implemented based on a BICC network, including MSC, MGW, and USS:
  • the MSC is configured to: control the MGW, and send the message to the USS through the control channel.
  • the MGW is configured to: receive a DTMF capability negotiation result sent by the USS, and establish a media channel and an outband transmission DTMF signal according to the DTMF capability negotiation result;
  • the USS is configured to: process the DTMF capability negotiation information and return a DTMF capability negotiation result, and establish a media channel and an outband transmission DTMF signal according to the DTMF capability negotiation result.
  • the MGW includes a capability negotiation module, a media channel establishment module, and a DTMF signal coding mode. a block and a signal transceiving module, wherein: the capability negotiation module is configured to: receive a capability negotiation result returned by the USS;
  • the media channel establishing module is configured to: establish a media channel with the USS when the capability negotiation is successful;
  • the DTMF signal encoding module is configured to: encode the DTMF signal according to the DTMF capability negotiation result of the capability negotiation module;
  • the signal transceiving module is configured to: send the encoded DTMF signal to the USS through the established media channel.
  • the USS includes a capability negotiation module, a media channel establishment module, a DTMF signal decoding module, and a signal transceiver module, where:
  • the capability negotiation module is configured to: receive DTMF capability negotiation information by using the control channel, process the DTMF capability negotiation information to generate a DTMF capability negotiation result; and return the DTMF capability negotiation to the MGW through the control channel. Result
  • the media channel establishing module is configured to: when the capability negotiation succeeds, establish a media channel with the MGW;
  • the DTMF signal decoding module is configured to: decode the DTMF signal according to the DTMF capability negotiation result of the capability negotiation module;
  • the signal transceiving module is configured to: receive the DTMF signal sent by the MGW through the established media channel, and send the decoded DTMF signal to the application server (AS).
  • AS application server
  • the system further includes an AS, the MSC is configured to send DTMF capability negotiation information of the MGW to the USS through a control channel by: sending the DTMF capability negotiation information by using BICC signaling loaded with an IPBCP message.
  • the AS is configured to send DTMF capability negotiation information of the MGW to the USS through a control channel by: sending the DTMF capability negotiation information by using BICC signaling loaded with an IPBCP message.
  • the AS is configured to: send the DTMF capability negotiation information to the USS by using a SIP message;
  • the USS is configured to return a DTMF capability negotiation result in the following manner: sending the DTMF capability negotiation result to the AS by using a SIP message;
  • the AS is further configured to: send the DTMF capability negotiation result to the MGW by using BICC signaling loaded with an IPBCP message.
  • the MGW further includes a DTMF signal detecting module configured to: detect whether a DTMF signal is received, and notify the DTMF signal encoding module to perform encoding when detecting.
  • the mobile switching center transmits the capability negotiation information of the DTMF signal of the media gateway (MGW) to the USS through the control channel, and the USS processes the capability negotiation information and returns
  • the result of the capability negotiation if the negotiation is successful, the media channel is established; the outband transmission of the DTMF signal is realized through the established media channel, so as to support the transmission and reception of the multi-bit variable length button information, and fully utilize the functions of the existing USS, simplifying the application itself for the DTMF Signal parsing work.
  • FIG. 1 is a schematic structural diagram of a network element and a protocol according to the present invention.
  • FIG. 2 is a schematic diagram of a transmission method of an out-of-band dual-tone multi-frequency signal according to the present invention
  • FIG. 3 is a signaling flow chart of an application example of the present invention.
  • the main idea of the transmission method and system for the out-of-band dual-tone multi-frequency signal of the present invention is that before the transmission of the dual-tone multi-frequency (DTMF) signal in the BICC broadband network, the mobile switching center (MSC) transmits the media gateway to the USS through the control channel (MGW).
  • MSC mobile switching center
  • MGW control channel
  • the capability negotiation information of the DTMF signal the USS processes the capability negotiation information and returns the capability negotiation result, and if the negotiation succeeds, the media channel is established; the outband transmission of the DTMF signal is implemented through the established media channel to support the multi-bit variable length button
  • the information is sent and received, and the functions of the existing USS are fully utilized to simplify the application of the DTMF signal analysis by the application (the actual business process, such as the actual application such as IVR).
  • the BICC network is a 3GPP R4 network.
  • the dual tone multi-frequency signal transmission method of the present invention includes the following steps:
  • Step 201 The mobile switching center (MSC) sends the dual tone multi-frequency (DTMF) capability negotiation information of the media gateway (MGW) to the USS through the control channel;
  • MSC mobile switching center
  • DTMF dual tone multi-frequency
  • the DTMF capability negotiation information includes negotiation parameters required for encoding.
  • the MSC controls the MGW, and the MSC passes the Mc interface (media).
  • the control interface acquires the capabilities of the MGW, so the capability negotiation process is initiated by the MSC.
  • Step 203 When the capability negotiation succeeds, the USS and the MGW establish a media channel according to the DTMF capability negotiation result, and transmit the DTMF signal out-of-band through the media channel.
  • the button information arrives at the MSC, and the MSC transmits the signal to the MGW through the H.248 media control signaling.
  • the MGW encodes the received DTMF signal according to the media capability negotiation result, and sends the DTMF signal to the USS through the established media channel; the USS receives the encoded DTMF signal, and decodes the encoded DTMF signal according to the capability negotiation result, and The decoded DTMF signal is reported to the application server (AS).
  • AS application server
  • the network elements and protocols involved in the present invention include:
  • the MSC (Mobile Switching Center) module adds an offer for DTMF codec negotiation in the IPBCP message
  • the AS Application Server
  • the USS module processes the DTMF codec capability negotiation offer in the SIP message to generate a DTMF codec capability negotiation answer; establishes a media channel according to the IPBCP negotiated media information and the MGW Nb UP negotiation; sends the media stream to the MGW; accepts the MGW Using the negotiated DTMF encoding method to encode the DTMF information and decoding the upper ⁇ AS;
  • the MGW (Media Gate Way) module performs Nb UP negotiation with the USS; accepts the media stream sent by the USS; encodes the received DTMF and sends it to the USS.
  • the present invention relates to protocols such as BICC, IPBCP, SIP, SDP, etc., as shown in the accompanying drawings.
  • the present invention provides a transmission system for an out-of-band multi-tone dual-frequency signal, which is implemented based on a BICC (3GPP R4) network, including a mobile switching center (MSC) and a media gateway (MGW) connected through a network. And media server (USS), where
  • the MSC is configured to control the MGW, and send DTMF capability negotiation information of the MGW to the USS by using a control channel;
  • the MGW is configured to receive a DTMF capability negotiation result sent by the USS, and establish a media channel and an outband transmission DTMF signal according to the DTMF capability negotiation result;
  • the USS is configured to process the DTMF capability negotiation information and return a DTMF capability negotiation result, and establish a media channel and an outband transmission DTMF message according to the DTMF capability negotiation result.
  • the MGW includes a capability negotiation module, a media channel establishment module, a DTMF signal coding module, and a signal transceiving module, where: the capability negotiation module is configured to receive a capability negotiation result returned by the USS;
  • the media channel establishing module is configured to establish a media channel with the USS when the capability negotiation succeeds;
  • the DTMF signal encoding module is configured to encode the DTMF signal according to the DTMF capability negotiation result of the capability negotiation module;
  • the signal transceiving module is configured to send the encoded DTMF signal to the USS through the established media channel.
  • the USS includes a capability negotiation module, a media channel establishment module, a DTMF signal decoding module, and a signal transceiver module, where:
  • the capability negotiation module is configured to receive DTMF capability negotiation information by using the control channel, process the DTMF capability negotiation information to generate a DTMF capability negotiation result, and return the DTMF capability negotiation to the MGW by using the control channel. Result
  • the media channel establishing module is configured to establish a media channel with the MGW when the capability negotiation succeeds;
  • the DTMF signal decoding module is configured to decode the DTMF signal according to the DTMF capability negotiation result of the capability negotiation module;
  • the signal transceiving module is configured to receive the DTMF signal sent by the MGW through the established media channel, and send the decoded DTMF signal to the application server (AS).
  • the system further includes an AS, where the MSC sends the DTMF capability negotiation information to the AS by using BICC signaling loaded with an IPBCP message, and the AS sends the DTMF capability negotiation information to the office by using a SIP message.
  • the USS, and the DTMF capability negotiation result is sent to the MGW using the BICC signaling loaded with the IPBCP message; the USS sends the DTMF capability negotiation result to the AS by using a SIP message.
  • the MGW further includes a DTMF signal detecting module, configured to detect whether a DTMF signal is received, and notify the DTMF signal encoding module to perform encoding when detecting.
  • a DTMF signal detecting module configured to detect whether a DTMF signal is received, and notify the DTMF signal encoding module to perform encoding when detecting.
  • Step 301 The MSC sends an IAM (Initial Address Message) message to the AS server, and the IAM message.
  • IAM Initial Address Message
  • IAM is BICC signaling, in which IPBCP messages are loaded.
  • the capability negotiation information referred to in the present invention includes various parameters required for encoding.
  • the RFC2833 capability negotiation offer is expressed as follows: (m line increases the last 97, adds a new line a):
  • audio 5000 RTP means to use rtp transmission, 5000 ports, which is described in detail in SDP protocol; AVP 8 4 0 18 97 respectively indicate several encoding formats, and SDP protocol describes rtpmap:97 telephone-event/8000/ l is used to indicate that the MGW has DTMF encoding capability, and can of course be represented by other strings.
  • Step 302 After receiving the IAM message, the AS server sends the RFC2833 capability negotiation information (the offer) to the USS through the INVITE message (SIP protocol);
  • Step 303 The USS processes the RFC2833 capability negotiation information (offer) in the INVITE message to generate an RFC2833 capability negotiation result (answer);
  • Step 304 The AS server returns the response of the USS to the MSC/MGW through the APM signaling (BICC signaling) that carries the IPBCP message.
  • APM signaling BICC signaling
  • the RFC2833 capability negotiation result (answer) message is as follows (m line adds the last 101, adds two a lines):
  • the m line in Offer represents the protocol type, port, and audio encoding type supported by the MGW.
  • the m line in ANSWSER indicates that the USS has selected the encoding types and protocols it supports from the offer.
  • Step 305 The USS and the MGW perform Nb UP negotiation according to the IPBCP capability negotiation result and establish a media channel.
  • Step 306 The AS server sends an info message (SIP protocol) to indicate that the USS plays the voice;
  • the MGW transmits the detected DTMF signal to the USS through the Nb interface according to the RFC2833 capability negotiation result according to the RFC2833 capability negotiation result;
  • Step 308 The USS parses the DTMF signal encoded by the RFC2833, and reports the parsed DTMF signal to the AS through an info message (SIP protocol); the AS server performs corresponding operations according to the button information.
  • SIP protocol info message
  • the mobile switching center transmits the capability negotiation information of the DTMF signal of the media gateway (MGW) to the USS through the control channel, and the USS performs the capability negotiation information. Process and return the capability negotiation result. If the negotiation is successful, the media channel is established.
  • the outband transmission of the DTMF signal is realized through the established media channel to support the transmission and reception of the multi-bit variable length button information, and the functions of the existing USS are fully utilized to simplify the application. It works itself for the resolution of DTMF signals.

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Telephonic Communication Services (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

La présente invention concerne un procédé et un système permettant de transmettre un signal multifréquence à deux tonalités hors bande sur la surface d'un support, le procédé comprenant les étapes suivantes : dans un réseau de Commande d'Appel Indépendant du Support (BICC, Bearer Independent Call Control), un Centre de Commutation Mobile (MSC, Mobile Switching Center) envoie des informations de négociation de capacité de Transmission MultiFréquence à Deux Tonalités d'une Passerelle Multimédia (MGW, Media Gateway) à un serveur USS (Serveur de flux de diffusion individuelle) par l'intermédiaire d'un canal de commande ; ledit serveur USS élimine lesdites informations de négociation de capacité DTMF et envoie un résultat de négociation de capacité DTMF à ladite passerelle MGW par l'intermédiaire du canal de commande ; lorsque la négociation de capacité aboutit, ledit serveur USS et ladite passerelle MGW établissent un canal multimédia conformément audit résultat de négociation de capacité DTMF et transmettent le signal DTMF hors bande sur ledit canal multimédia. Le procédé et le système de transmission du signal multifréquence à deux tonalités hors bande permettent de mettre en œuvre la transmission hors bande du signal DTMF sur le réseau BICC.
PCT/CN2010/077157 2010-06-22 2010-09-20 Procédé et système de transmission d'un signal multifréquence à deux tonalités hors bande sur la surface d'un support WO2011160345A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201010207183.6A CN101860630B (zh) 2010-06-22 2010-06-22 带外双音多频信号的传输方法和系统
CN201010207183.6 2010-06-22

Publications (1)

Publication Number Publication Date
WO2011160345A1 true WO2011160345A1 (fr) 2011-12-29

Family

ID=42946279

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2010/077157 WO2011160345A1 (fr) 2010-06-22 2010-09-20 Procédé et système de transmission d'un signal multifréquence à deux tonalités hors bande sur la surface d'un support

Country Status (2)

Country Link
CN (1) CN101860630B (fr)
WO (1) WO2011160345A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN118450281A (zh) * 2023-12-20 2024-08-06 荣耀终端有限公司 一种信息传输方法及电子设备

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102025850A (zh) * 2010-12-06 2011-04-20 中兴通讯股份有限公司 一种dtmf信号带内带外互转的方法和系统
CN114172858B (zh) * 2020-11-16 2023-12-08 深圳市咪码科技有限公司 信息传输方法和装置、以及存储介质和电子设备
CN114301882A (zh) * 2020-11-16 2022-04-08 深圳市咪码科技有限公司 信息传输方法和装置、以及存储介质和电子设备
CN113965552B (zh) * 2021-10-21 2024-03-29 合肥移瑞通信技术有限公司 话机音频信号的通信方法、话机系统及Volte模组
CN117880409B (zh) * 2024-03-11 2024-07-16 荣耀终端有限公司 通信方法、装置、芯片及存储介质

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20010036176A1 (en) * 2000-02-28 2001-11-01 Girard Gregory D. Apparatus and method for telephony service interface to software switch controller
CN1545272A (zh) * 2003-11-14 2004-11-10 中兴通讯股份有限公司 承载控制分离网络与公用交换网络双音多频信令互通方法
CN101336002A (zh) * 2008-07-29 2008-12-31 中兴通讯股份有限公司 一种媒体网关间的双音多频信号的参数协商方法及系统
CN101472019A (zh) * 2007-12-25 2009-07-01 华为技术有限公司 一种带外dtmf信令互通方法、系统和装置

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101453718B (zh) * 2007-11-30 2011-08-03 中国移动通信集团公司 电路域通话期间触发分组域连接的方法、设备及系统
CN101394446B (zh) * 2008-11-04 2011-06-08 华为技术有限公司 应用服务器、带内双音多频信号检测方法及系统
CN101588562B (zh) * 2009-06-03 2012-05-09 中兴通讯股份有限公司 基于承载无关呼叫控制协议的多媒体彩铃实现方法及系统
CN101583097B (zh) * 2009-06-08 2011-11-16 华为技术有限公司 软交换业务的通讯方法、装置和系统

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20010036176A1 (en) * 2000-02-28 2001-11-01 Girard Gregory D. Apparatus and method for telephony service interface to software switch controller
CN1545272A (zh) * 2003-11-14 2004-11-10 中兴通讯股份有限公司 承载控制分离网络与公用交换网络双音多频信令互通方法
CN101472019A (zh) * 2007-12-25 2009-07-01 华为技术有限公司 一种带外dtmf信令互通方法、系统和装置
CN101336002A (zh) * 2008-07-29 2008-12-31 中兴通讯股份有限公司 一种媒体网关间的双音多频信号的参数协商方法及系统

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
LV, ZHENHUA: "Analysis about Key Techniques of Internet-working between Soft Switch and 3G Network", THE DESIGNING TECHNIQUES OF POSTS, no. 2, February 2006 (2006-02-01), pages 12 - 16 *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN118450281A (zh) * 2023-12-20 2024-08-06 荣耀终端有限公司 一种信息传输方法及电子设备

Also Published As

Publication number Publication date
CN101860630A (zh) 2010-10-13
CN101860630B (zh) 2014-07-02

Similar Documents

Publication Publication Date Title
US6449269B1 (en) Packet voice telephony system and method
EP1786162B1 (fr) Procede d'ecoute par le terminal utilisateur appelant du signal du terminal utilisateur appele en cas d'interconnexion
US20070025338A1 (en) Software-based solutions for telephone network bridging
EP1026861B1 (fr) Système et méthode pour la signalisation d'appel distribuée dans des réseaux locals avec téléphonie
US7486665B2 (en) Transport of DTMF tones over VOATM/VOIP networks
WO2011160345A1 (fr) Procédé et système de transmission d'un signal multifréquence à deux tonalités hors bande sur la surface d'un support
WO2009033344A1 (fr) Méthode et système de réalisation de transmissions sans pertes de flux de média suite à une commutation entre un appel ouvert et un appel secret
KR20050088397A (ko) 음성 호출 경보를 제공하는 방법 및 장치
CN1838673B (zh) 用于在终端设备之间建立有用数据连接的方法
US8077853B2 (en) VoIP adapter, IP network device and method for performing advanced VoIP functions
CN1988578A (zh) 提供多媒体通讯的系统、方法及家庭网关
CN101472019B (zh) 一种带外dtmf信令互通方法、系统和装置
CN1976376B (zh) 一种呼叫会话的方法、ip电话系统及ip电话终端
JP2011239015A (ja) ネットワーク装置及び電話システム
CN108881180B (zh) 录音方法及录音系统
CN108737671B (zh) 一种voip通信方法、装置、设备及家庭网关系统
CN107529151A (zh) 一种实现业务切换的方法、应用服务器和系统
CN117880409B (zh) 通信方法、装置、芯片及存储介质
US7372876B2 (en) Method for setting up a useful data link between terminals in a VoIP system
CN1836432B (zh) 通过简化处理信令信息在与分组网络中的语音对话系统进行用户交互时更节约的资源使用
CN100440911C (zh) 一种调节ip电话音量大小的方法
JP6597392B2 (ja) ゲートウェイ装置、通信処理プログラム、及びネットワークシステム
KR100393633B1 (ko) 웹폰시스템에 있어서 인터넷 호와 전화망 호 간의 외부 호포워딩방법
CN100568896C (zh) Ip电话语音应答的交互系统及其方法
CN101997991A (zh) Bicc信令前置机、bicc彩铃ivr业务的实现系统和方法

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: 10853484

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: 10853484

Country of ref document: EP

Kind code of ref document: A1

点击 这是indexloc提供的php浏览器服务，不要输入任何密码和下载