sip常用消息實例(編輯修改稿)
2025-08-20 02:29 本頁面
【文章內(nèi)容簡介】 ID:NDQzMGE1MDMzYWU0NjRiYzMxMGY3NGUxMjBhMjBkNTQ.CSeq:1SUBSCRIBEExpires:300Allow:INVITE,ACK,CANCEL,OPTIONS,BYE,REFER,NOTIFY,MESSAGE,SUBSCRIBE,INFOUserAgent:eyeBeamrelease1011dstamp40820Event:messagesummaryContentLength:0 服務(wù)器端（）發(fā)送回執(zhí)的200 OK信息，參考消息如下：SIP/200OKVia:SIP/:32092。branch=z9hG4bKd87543ec03ee3e022acf281d87543。rportFrom:01062237498sip:01062237498@:5060。tag=e01c2548To:01062237498sip:01062237498@:5060CallID:NDQzMGE1MDMzYWU0NjRiYzMxMGY3NGUxMjBhMjBkNTQ.CSeq:1SUBSCRIBEContentLength:0INVITE消息 1）頭字段填寫說明 必選頭域如下：Callid Contact CSeq From To MaxForwards Via Supported Allow 常用可選頭域：Accept Authorization ContentlengthContenttype RecordRoute Route Require ProxyAuthorization Proxyrequire Passertedidentity Ppreferedidentity Privacy 2）非鑒權(quán)INVITE消息實例 在這個實例中，筆者在本機(jī)（）上使用BOL注冊了17899998888號碼，呼叫01062230001號碼時發(fā)送INVITE消息給服務(wù)器（）的軟交換，發(fā)送INVITE消息參考如下：INVITEsip:01062230001@SIP/Via:SIP/:9545MaxForwards:70From:Administratorsip:17899998888@。tag=2dc6e1000081463ba14f7db4e50b8643。epid=d6b5434cefTo:sip:01062230001@CallID:31e72e80d5b04f52aba6cb8be8f3c0c0@CSeq:1INVITEContact:sip::9545UserAgent:RTC/ContentType:application/sdpContentLength:691v=0o=00INIP4s=sessionc=INIP4b=CT:1000t=00m=audio56284RTP/AVP97111112608453101k=base64:fGmazgf5GXZfJxZ27G9A7rxA4B7KX0pHrjYELKphPoga=rtpmap:97red/8000a=rtpmap:111SIREN/16000a=fmtp:111bitrate=16000a=rtpmap:112G7221/16000a=fmtp:112bitrate=24000a=rtpmap:6DVI4/16000a=rtpmap:0PCMU/8000a=rtpmap:8PCMA/8000a=rtpmap:4G723/8000a=rtpmap:5DVI4/8000a=rtpmap:3GSM/8000a=rtpmap:101telephoneevent/8000a=fmtp:101016a=encryption:optionalm=video61432RTP/AVP3431k=base64:W5uTU8sIQjJVPWyRF31GZouVwAHFtE1cAmblK+mvDdIa=recvonlya=rtpmap:34H263/90000a=rtpmap:31H261/90000a=encryption:optional其中m行表示支持的媒體編碼，其中“m=audio 56284 RTP/AVP 97 111 112 6 0 8 4 5 3 101”指明了幾種支持的音頻媒體類型，“m=video 61432 RTP/AVP 34 31”指明了幾種支持的視頻媒體類型。軟交換服務(wù)器（）接收到INVITE消息后，即刻發(fā)送了100 trying消息，如下所示：SIP/100TryingVia:SIP/:9545From:Administratorsip:17899998888@。tag=2dc6e1000081463ba14f7db4e50b8643。epid=d6b5434cefTo:sip:01062230001@CallID:31e72e80d5b04f52aba6cb8be8f3c0c0@CSeq:1INVITEContentLength:0 軟交換服務(wù)器（）查找被叫號碼消息，并發(fā)送INVITE消息給被叫的地址，接收到被叫的100 trying消息，而后接收到180 Ringing消息，軟交換服務(wù)器給主叫方也發(fā)送180 Ringing消息，告知被叫已振鈴，發(fā)送消息如下：（第一行可不關(guān)注，是筆者公司的底層打出的消息）： [16:15:59]===SIPTransactionSendSIPmessage(455bytes)to:9545SIP/180RingingVia:1
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