The UE may request an IP address and Fully Qualified Domain Name (FQDN) from a DHCP server and then perform a DNS query on the returned IP address and FQDN. SIP IMS Call Flow SIP Registration After UE finishes radio procedures and it establishes radio bearers UE can start SIP registration ...
For the end-2-end signalling (voice call setup) we use SIP protocol. The multimedia then goes ...
S-CSCF对于用户主叫及被叫侧进行路由管理，根据用户签约的初始过滤规则，进行SIPAS触发，实现丰富的IMS业务功能。MGCF（MediaGatewayControlFunction）：执行IMS与CS域的互通；不同域间协议转换；MGW（MediaGateway）：连接不同域的用户面；不同网络之间的编解码转换；VoLTEBearerCombination TheVoIPservicehasspecificbearer...
2. The P-CSCF acknowledges the INVITE to the MO UE with "100 Trying” message indicating that the call setup is in progress. 3. The SIP method OPTIONS allows a IMS to query another UE or a proxy server as to its capabilities. This allows a client to discover information about the ...
2)主叫建立SRB2信令无线承载,QCI9默认承载和QCI5SIP信令无线承载。例如在本例中,信令无线承载SRB-ID...发送call confirmed消息,包含语音编码能力相关信息。 6)主叫LTE手机,建立qci=1的语音承载。由于被叫不支持视频,所以没有建立qci=2的承载。 7)核心网IMS服务器发送INVITE...
•VoiceoverLTEisthesolutiontoprovidetheVoiceservicecapabilitybasedonGSMAIR.92specification.-Realtimetraffic-QualityofService-InteroperabilitytoexistingCSvoicenetwork•IPMultimediaSubsystem(IMS)enablesintegratedvoice,dataandmulti-mediaservicesinterworkingbetweendifferentaccessnetworks.IMSisbasedonSIPcallcontrolforcreating...
VoLTECallFlow(IR.92)ThomasHammannPhase5:UserDataandGBR/NoneGBRschedulingE-UTRANS-GWS1-UEPSDefaultBearerforIMSAPN(QCI5,e-RAB=5,EBI=5)EPSBearerforDefaultBearerforDataAPN(QCI9,e-RAB=6EBI=6)P-GWS5/S8RadioAccessBearerismappedtoGTPTunnel.TFTstoselecte-RABinULTFTstoselectBearer(EBI)inDLSIPTraffic...
一种VoLTE通话流量提示方法及装置 One kind VoLTE call flow method and device tips 本发明提供一种VoLTE通话流量统计方法及装置,用以解决目前现有技术无法提示VoLTE通话流量使用情况的问题,该方法包括:检测终端当前通话是否为长期演进LTE语音方案VoLTE... 房贺祎...
如题,VoLTE信令中的媒体feature-tag汇总全集。在volte信令中,有很多媒体相关的media feature-tag。比如:g.3gpp.cs-voice、g.3gpp.cs-video、g.3gpp.smsip、g.3gpp.icsi-ref、g.3gpp.iari-ref、g.3gpp.ics、g.3gpp.accesstype、g.3gpp.pne-id、g.3gpp.cs2ps-srvcc-alerting、g.3gpp.path、g.3gpp.cs2ps...
If you know a bit about SIP and IMS you are probably aware that they are quite flexible. There are many ways how to do some solution and different vendors can easily come up with different implementation for the same thing. In trainings people are asking very often – is this SIP message...