端到端的VoLTE通话(7)--180,183和200消息.docx

端到端的Vo1TE通话(7)180,183和200消息#4G#vo1te#183#180#200接入IMS网络进行VO1TE/VONR连接的主叫和被叫终端(UES)经由P-CSCF、SBC等网元进行会话连接和语音编码协商；期间通过183,180和200C)K等消息告知网络(对端)会话协商进展；欢迎阅读以下相关 VONR与VO1TE VO1TE/VONR中的AMR Vo1TE/VONR语音编解码器方案 看1OG学5G(57)-VO1TEVONR中183消息 看1OG学5G(59)-VO1TE和VONR中的SDP1、53PCRF用AAA响应PCSCF°BDiameterProtoco1version:OxO11ength:272(±)F1ags:0x40commandcode:265AAApp1ication1d:3GPPRx(16777236)Hop-by-HopIdentifier:0x90075010End-to-EndIdentifier:0x578a8f77Requestin:1241Responserime:0,020906000secOndS1®AVP:session-1d(263)1=41f=-M-va1=10.75.23.192;780;67179008;899;(±1AVP：Resu1t-Cde(268)1=12f=-M-va1=DIAMETER_SUCCESS(2001)AVP:Origin-Host(264)1=52f-M-va1.pcrf001.epc.mnc.mcc(±)AVP:origin-Rea1m(296)1=41f=-M-va1=epc.mnc.mcc.3gppnetwor1±)AVP:Auth-App1icaton-Id(258)112f-M-va1=3GPPRx(16777236)S)AVP:Supported-Features(628)1=56f=vvnd=TGPPaAVP:IP-CAN-Type(1027)1=16f=VM-vnd=TGPPva1=3GPP-EPS5)3AVP:RAT-Type(1032)1=16f=V-vnd=TGPPVa1=EUTRAfGIf1运宇5G图1AAA的AVP2.54在从PCRF接收到成功的AAAJS,P-CSCF通过向UE转发183SessionInProgress来继续SIP信令。下图(2)显示了在Gm界面上捕获的183SessionInProgress的标头。P-Ear1y-Mediaheader：指示UE是否支持早期媒体模式。现网中禁用早期媒体选项G容易发生”鬼振铃"现象)。sessioninitiationProtoco1(183).Status-1ine:SIP/2.0183SessionProgre乂AWjaU-j,a'iVia:SIP2.0TCP1.64.63.41:5060;received1OO.64.63.41：branctz9t)G4bK32S733SO3OsBg:trar>port=TCP;iFrom:<te1:+917021075243>tag=3228447383二To:vte1:+702107S394>jtag=mavodi-c-10b-32-2-ffffffff-_OOOC29SA7SBA-7e7e-c4899700-18eO-S489452e-61Ca1ITD：64S6894761.64.63.411. cseq：1INVITERequire:IOOreIRSeq:2 truncatedcontact:<s1p:od1-c-10b-32-2fffffffftasx001.1ms.mc.acc.Jgppnctwork.org：A11ow：UPDAT11WI1FY1INVirE1INf.PkACK,ACK1BY1,SU8SCR1B1.K1G1ST1R1R1r1R.OPTIOMS,CANC11,PUB1ISH.M1SS RecordRoute:<sip:Od1oIOfSfffffff2ffffffff¢10.75.23.197:5060;SiPod1OI1b222200;IrAP1ar1y-Media:inactive P-AssertedIdentity:sip:+.7O21O753!Mis.mt.c.3gppnetwork.orgServer:/v1.0PCSCF/v1.0-14042501oP-Access-Network-Info:3gpp-e-utrn-tdd:utran-ce11-id-3gpp-00060001a11Content-Type:app1ication/sdpCoritent-1ength:364nMessageBoay匕SessionDescriptionProtoco1图2.183SessionInProgress标题下图(3)显示了183SeSSiOn1nPrOgreSS中包含的SDP应答。从UE的角度来看，SBC将成为对等节点。鉴于此IP地址和端口号表示发起UE应连接到的SBC以获取媒体，编解码器信息表示SBC支持的编解码器信息。有关SDP属性的详细说明，请参阅步骤#47。sessionIniriarionProtoco1(183)Status-1ine:SIP2.O183sessionProgress国MeSSageHeaderMessaaeB1SessionDescriptionProtoco1sessionDescriptionProtoco1version(v):Oowner/creator,sessionId()：CCS-O-275-20272236414102590411410259041INIP4KsessionName(s):55voipsessioninformation(i):AVOIPSessionXconnectioninformation(c):INIP410.75.23.197±TimeDescription,activetime():OOMediaDescription,nameandaddress(m):audio10570rtp/avpI1O«BandwidthInformation(b):AS:31.BandwidthInformation(b):RS：3871BandwidthInformation(b):RR：1162MediaMedia»MediaQDMediaS1Media土MediaArrribureAttributeAttributeAttributeAttributeArrrIburo(a):(a)：(a):(a):(a)：(a):SendreCVmaxpime:240PIin1e:20msi:odiO14dc2-ffffffff10.75.2>9Zr1.izcs.r一rtpf1)ap:110AyRwb/16000/1ifII-2J(一超字弓弓OCror-a1i(ir)=1;除>(1。-SPfmQdP-CMar)q。-CaPabi图3.183SessionInProgress中的SDP应答发送给主叫(始发)UE的SDP应答显示IP地址为10.75.23.197,端口号为10570o355UE通过发送SIPPRACK确认已安全接收至U183SessionInProgresswithSDPansweroRACK头:对应183SessionInProgress和SIPINVITE的序号。有关其他标头的详细说明，请参阅步骤#47。sessioninitiationProtoco1(PRACK),Request-1ine:PRACKsip:od1-c-1Ob-32-2-ffffffff-tasxOO1.ims.mnc.mcc.Sqppnei&JrqqX0pXIXd川4.RACk：21INVITEP-Access-Network-Into:1gpp-f-uran-tdo;utran-ce11-1d-3gpp40587400060001a11tFrom:<te1:7O21O7S243>tag-1284448itTO：<e1：470?1075J94>；rag-Od1CibV?tttttrtt_OOOC295A75BA-/e7oC48*)97OO-IK»cseq:2PRACKca11ID：6456894761OO.64.63.41Maxrorwards:70tRoute:sip:odiOIOfJfffffff2tfftffff10.7S.23.197:S060;Ir;sipodiOI1b22>Contact:<sip:7O21O75243(91OO.64.63.11:060>>g.3gpp.icsref.".'urr3urn7%33qppsIvia：SIP2.0UDP100.64.63.41：5060；次所由792限3401773265，叫；：，1都后岂第斤起字弓弓Content-1ngth:O"图4.SIPPRACK中的标头4.56UE接收到对SIPPRACK的200OK响应。sessioninitiationProtoco1(200).±STaUin:SIP。)，:)0CK-MessageHeaderfe,via:SIP2.OTCP100.64.63.41:5060;mav-udp-rport=5060;rport=5060;received=100.64.SFrom:<re1:+7021075243>ag=3228447383ETo:<te1:+7O21O75394>tag-mavodi-c-10b32-2-ffffffff_OOOC295A75BA7e7ec48997(Ca11-ID：645689476100.64.63.41CSeq:2PRACKServer:/v1.0PCSCF/v1.0-14042501o;和老旗一起学5Gcoter>engh:O'"图5.PRACK的200OK中的标头557UE接收到180Ringing临时响应,表示正在将语音呼叫建立请求通知给接收者。如果选项标签'10Orer出现在ReqUire头中，UE应通过发送PRACK确认临时响应。如果它出现SUPPorted标题中，它只是提供信息。SessionInitiationProtoco1(180)Itstatus-1ine:SIP2.O180Ringing>Via：SIP2.0TCP100.64.63.41:5060;received=100.64.63.41;brach=z9hG4b3257335O3Osmg;trFrom:<e1：47O21O75243>TagT228447383STo:<te1：h7O21O75394>3q-odicIOb32-2ffffffff_OOOC295A75BA7e7ec489970018c0Ca11-ID：645689476100.64.63.411CSeq：1INVITEEtruncatedcontact:<sip:odi-c-10b-32-2-ffffffff-.tasx001.ims.mnc.mcc.3gppA11ow：UPDAiE,NOTII-Y,INVIfI：.INF-O.PRACK,ACK,HYfe.SbKS(R1