1 SIP... 1 1.1 SIP... 1 1.2 SIP... 1 1.3 SIP... 2 2 SIP... 3 2.1... 3 2.2... 4 3 SIP... 6 3.1 SIP... 6 3.2 SIP... 6 3.3... 6 3.3.1... 6 3.3.2... 8 4 SIP... 11 4.1... 11 4.2 1xx... 11 4.3 2xx... 12 4.4 3xx... 12 4.5 4xx... 12 4.6 5xx... 14 4.7 6xx... 15 5 SIP... 16 5.1... 16 5.2... 17 5.3... 18 5.4... 19 5.5... 20 6 SIP SoftX3000... 22 6.1 SIP... 22 6.2 SIP SoftX3000... 22 6.3... 24 6.3.1 INVITE... 24
6.3.2 100 TRYING... 26 6.3.3 407 Proxy Authentication... 27 6.3.4 ACK... 28 6.3.5 INVITE... 29 6.3.6 100 TRYING... 31 6.3.7 INVITE... 32 6.3.8 180 RINGING... 34 6.3.9 200 OK... 35 6.3.10 ACK... 36 6.3.11 OPTION... 37 6.3.12 BYE... 38
SIP SDP IP /Internet SIP IETF HTTP IP SIP
1 SIP 1.1 SIP SIP Session Initiation Protocol IETF IP / SIP SIP ISDN SIP MCU PSTN IP SIP SIP IETF 1-1 H.323 SIP RTSP RSVP RTCP H.263 etc. RTP TCP UDP IP PPP AAL3/4 AAL5 PPP Sonet ATM Ethernet V.34 1-1 IETF 1.2 SIP
1.3 SIP transaction SIP Internet SIP UDP TCP UDP UDP TCP SIP UTF-8 ISO 10646 SIP SIP SIP IN SIP ITU T Capability Set 1 Capability Set 2
2 SIP 2.1 SIP User Agent Server SIP User Agent UA User Agent Client User Agent Server User Agent Client User Agent Server / User Agent Client User Agent Server User Agent Proxy Server User Agent SIP Proxy Server Redirect Server Register Server Server Register Server Proxy Server User Agent Client User Agent Server User Agent Client Redirect Server User Agent Client User Agent Client Proxy Server Sip 2-1
Redirect Server Location/Register Server 1 2 3 4 5 SIP Client UA 8 media Proxy Server 7 6 SIP Client UA 2-1 Sip 2.2 Call SIP CALL_ID SIP MCU MCU Call leg Call-ID To From addr-spec tag addr-spec user hostport Call-ID A B B A Conference Initiator Caller Invitee Callee
Invitation SIP 2 INVITE ACK / Isomorphic request or response Call-ID To From CSeq / Rquest-URI Parallel search Final response SIP 2XX 3XX 4XX 5XX 6XX Provisional response SIP 1XX Session SDP SDP SIP SIP Transaction SIP Call leg Cseq ACK INVITE CSeq B2BUA B2BUA UAC UAC UAS
3 SIP 3.1 SIP SIP SIP Server User Agent SIP INVITE ACK BYE CANCEL OPTION UPDATE SIP 1xx 2xx 3xx 4xx 5xx 6xx 3.2 SIP SIP SIP SIP SIP 3.3 3.3.1 SIP SIP
Call-id: URI via: From: To: Contact: Cseq : Content-Length: Max-Forward: Content-Type: White Space SDP 3-1 SIP 6.3 SIP INVITE sip:0109@127.0.0.1:5060;user=phone SIP/2.0 Call-ID:01E04633512400000@127.0.0.1 Via:SIP/2.0/UDP 127.0.0.1:5061 From:<sip:010203@127.0.0.1:5061;User=phone>;tag=29005358336B534F 610A000 To:<sip:0109@127.0.0.1:5060;User=phone> Contact: sip:010203@127.0.0.1:5061 CSeq:1 INVITE Max-Forwards:70
Content-Type: application/sdp Content-Length:168 v=0 o=usera 2890844526 2890844526 IN IP4 here.com s=session SDP c=in IP4 192.0.0.1 t=0 0 m=audio 49172 RTP/AVP 0 8 a=rtpmap:0 PCMU/8000 a=rtpmap:8 PCMA/8000 a=sendonly INVITE SIP SIP URI SIP SIP URI URI IP SIP From To Contact SIP URI From URI Via CSeq SIP SIP SIP/2.0 SDP INVITE Content-Length SDP 3.3.2 SIP SIP
SIP/ Call-id: via: From: To: Contact: Cseq : Content-Length: Max-Forward: Content-Type: White Space SDP 3-2 SIP 6.3 SIP SIP/2.0 200 OK Content-Type:application/SDP Via:SIP/2.0/UDP 127.0.0.1:5061 Call-ID:01EF351F8140000000000@127.0.0.1 CSeq:1 INVITE From:<sip:010203@127.0.0.1:5061;User=phone>;tag=29005358336B534F 610A000 To:<sip:0109@127.0.0.1:5060;User=phone>;tag=5358336B534F2900CD1 B0000
Contact:<sip:0109@127.0.0.1:55061> Content-Length:156 v=0 o=huaweisoftx3000 1073741824 1073741824 IN IP4 127.0.0.1 s=sip Call c=in IP4 110.111.112.113 t=0 0 m=audio 5060 RTP/AVP 0 a=rtpmap:0 PCMU/8000 200 OK SIP SIP 200 SIP URI URI IP SIP From To Contact SIP URI From URI Via CSeq SIP SIP SIP/ SDP INVITE
4 SIP 4.1 SIP 4-1 4-1 1xx 2xx 3xx 4xx 5xx 6xx 4.2 1xx 1xx 200 1xx 1xx 4-2 1xx 4-2 1xx 100 Trying 180 Ringing 181 Call Is Being Forwarded
182 Queued "reason phrase" 5 15 182 4.3 2xx 2xx 200 OK 4.4 3xx 3xx 4-3 3xx 4-3 3xx 300 Multiple Choice Contact 301 Moved Permanently Request-URI Contact 302 Moved Temporarily Contact Expire 305 Use Proxy Contact Contact URI 380 Alternate Service 4.5 4xx 4xx SIP 4-4 4xx
4-4 4xx 400 Bad Request 401 Unauthorized 402 Payment Required 403 Forbidden 404 Not Found Request-RUL Request-RUL 405 Method Not Allowed Allow 406 Not Acceptable Accpe 407 Proxy Authentication Required 401 408 Request Tiemout Expire 409 Conflict REGISTER action 410 Gone 404 411 Length Required Content-Length Cotent-Length 413 Request Entity Too Large Retry-After 414 Request-URI Request-URI Too Long Request-URI 415 Unsupported Media Type Accept Accept-Encoding Accept-Language 420 Bad Extension Require 480 Temporarily Unavailable Retry-After
481 / Call leg/transaction Does Not Exist BYE CANCEL TAG INVITE ACK 482 Loop Detected Via 483 Too Many Hop Via Max-Forwards 484 Address Incomplete To Request-RUL 485 Ambiguous Contact 486 Busy Here Retry-After 487 Request Cancelled CANCEL 4.6 5xx 5xx SIP 4-5 5xx 4-5 5xx 500 Server Internal Error 501 Not Implemented 502 Bad Gateway 503 Sevice Unavailable 504 Gateway Timeout 505 Version Not Supported
4.7 6xx 6xx SIP 4-6 5xx 4-6 5xx 600 Busy Everywhere Retry-After 486 Busy Here 603 Decline Retry-After 604 Does Not Exist Anywhere To 606 Not Acceptable
5 SIP 5.1 SIP 5-1 5-1 SIP MGC PSTN SIP SIP PSTN Megaco/h.248 SIP SIP MGC SIP SIP SIP SIP MG PSTN IP MG MG SIP RTP/RTCP MG MGC Megaco/h.248 MGCP MGC MG MG MGC
MGC SIP MGC SIP SIP SIP 5.2 7 MGC1 5,19 9,13,17 MGC2 7 2 14,18 3,10 4,11 6 8 12,16 7 S1 MG1 IP MG2 S2 1 15 5-2 (1) (2) S1 MGC1 IAM (3) MGC1 MG1 CreateConnection (4) MG1 MG1 RTP/RTCP (5) MGC1 MGC2 INVITE IAM (6) MGC2 INVITE MG2 CreateConnection (7) MGC2 INVITE IAM S2 (8) MG2 MG1 RTP RTP/RTCP (9) MGC2 MGC1 100 TRYING MG2 RTP/RTCP (10) MGC1 MG1 ModifyConnection (11) MG1 MG2 RTP MGC1 (12) S2 MGC2 ACM (13) MGC2 MGC1 180 RINGING ACM (14) MGC1 180 ACM S1 (15)
(16) S2 MGC2 ANM (17) MGC2 MGC1 200 OK ANM (18) MGC1 200 ANM S1 (19) MGC1 MGC2 ACK 5.3 7 MGC1 6 9 MGC2 7 2 10 5 3 4 7 8 11 IP S1 MG1 MG2 S2 1 5-3 (1) (2) S1 MGC1 REL (3) MGC1 MG1 DeleteConnection (4) MG1 MGC1 DeleteConnectionACK (5) MGC1 S1 RLC (6) MGC1 MGC2 BYE (7) MGC2 MG2 DeleteConnection (8) MG2 MGC2 DeleteConnectionACK (9) MGC2 MGC1 200 OK (10) MGC2 S2 REL (11) S2 MGC2 RLC
5.4 7 MGC1 5,23 6,24 11,16,21 SIP 10,15,20 MGC2 7 2 17,22 14,19 3,12 4,13 7 9 8 IP S1 MG1 MG2 S2 1 18 5-4 (1) Caller goes off hook (2) S1 MGC1 IAM (3) MGC1 MG1 CreateConnection (4) MG1 MG1 RTP/RTCP (5) MGC1 SIP INVITE IAM (6) SIP MGC1 INVITE IAM (7) MGC2 INVITE MG2 CreateConnection (8) MGC2 INVITE IAM S2 (9) MG2 MG1 RTP RTP/RTCP (10) MGC2 SIP 100 TRYING MG2 RTP/RTCP (11) SIP MGC1 100 TRYING MG2 RTP/RTCP (12) MGC1 MG1 ModifyConnection (13) MG1 MG2 RTP MGC1 (14) S2 MGC2 ACM (15) MGC2 SIP 180 RINGING ACM (16) SIP MGC1 180 RINGING ACM
(17) MGC1 180 ACM S1 (18) (19) S2 MGC2 ANM (20) MGC2 SIP 200 OK ANM (21) SIP MGC1 200 OK ANM (22) MGC1 200 ANM S1 (23) MGC1 SIP ACK 5.5 7 2 5 MGC1 6 7 11 SIP 13 3 4 8 9 12 10 MGC2 7 IP S1 MG1 MG2 S2 1 5-5 (1) (2) S1 MGC1 REL (3) MGC1 MG1 DeleteConnection (4) MG1 MGC1 DeleteConnectionACK (5) MGC1 S1 RLC (6) MGC1 SIP BYE (7) SIP MGC2 BYE (8) MGC2 MG2 DeleteConnection (9) MG2 MGC2 DeleteConnectionACK (10) MGC2 SIP 200 OK (11) SIP MGC1 200 OK
(12) MGC2 S2 REL (13) S2 MGC2 RLC
R R 6 SIP SoftX3000 6.1 SIP SoftX 3000 SIP SIP IP Network RTP SIP User SIP User 6-1 SoftX 3000 SIP SoftX3000 SIP SIP SIP RTP SIP SIP User A 10.77.226.121 E164 8882100 SIP User B 10.77.226.221 E164 8882101 SoftX3000 10.77.226.41 6.2 SIP SoftX3000 SoftX3000 SIP
SIP User A SoftX3000 SIP User B INVITE with sdp 100 TRYING 407 AUTHENTICATION ACK INVITE with sdp 100 TRYING 180 RINGING 200 OK with sdp ACK OPTIONS BYE 200 for BYE 1 2 3 4 5 6 8 9 11 RTP/RTCP 12 INVITE with sdp 100 TRYING 180 RINGING 200 OK with sdp ACK OPTIONS BYE 200 for BYE 7 10 6-2 SoftX3000 SIP (1) A B A SoftX3000 INVITE SIP (2) SoftX3000 A INVITE 100 TRYING SIP (3) SoftX3000 407 AUTHENTICATION A A (4) A AUTHENTICATION SoftX3000 ACK (5) A INVITE INVITE (6) SoftX3000 A INVITE 100 TRYING SIP (7) SoftX3000 B INVITE (8) B INVITE SoftX3000 100 TRYING (9) B SoftX3000 180 RINGING
(10) SoftX3000 A 180 RINGING (11) B SoftX3000 200 OK (12) SoftX3000 A (13) A SoftX3000 ACK (14) SoftX3000 B ACK (15) B OPTIONS SoftX3000 A (16) SoftX3000 A OPTIONS (17) B SoftX3000 BYE (18) SoftX3000 B 200 B SoftX3000 (19) SoftX3000 A BYE (20) SoftX3000 A 200 A SoftX3000 SoftX3000 SIP 6.3 6-2 6.3.1 INVITE Session Initiation Protocol SIP ) Request-Line: INVITE sip:8882101@10.77.226.41 SIP/2.0 INVITE URL SIP Message Header From: sip:8882100@10.77.226.41;tag=1c13959 From To: sip:8882101@10.77.226.41 To Call-Id: call-973574765-4@10.77.226.121 CALL-ID SIP Cseq: 1 INVITE Cseq INVITE Content-Type: application/sdp Content-Type
Content-Length: 199 Content-Length Accept-Language: en Accept-Language Supported: sip-cc, sip-cc-01, timer Support SIP Contact: sip:8882100@10.77.226.121 Contact User-Agent: Pingtel/1.0.0 (VxWorks) User-Agent UA Via: SIP/2.0/UDP 10.77.226.121 Via Session Description Protocol SDP Session Description, version (v): 0 SDP Owner/Creator, Session Id (o): Pingtel 5 5 IN IP4 10.77.226.121 Session Name (s): phone-call SDP Connection Information (c): IN IP4 10.77.226.121 IP Time Description, active time (t): 0 0 Media Description, name and address (m): audio 8766 RTP/AVP 0 96 8 RTP Media Attribute (a): rtpmap:0 pcmu/8000/1 PCMU Media Attribute (a): rtpmap:96 telephone-event/8000/1 telephone-event) Media Attribute (a): rtpmap:8 pcma/8000/1 PCMA
6.3.2 100 TRYING Session Initiation Protocol Status-Line: SIP/2.0 100 Trying Message Header Call-ID:call-973574765-4@10.77.226.121 CSeq:1 INVITE CSeq INVITE From:sip:8882100@10.77.226.41;tag=1c13959 To:sip:8882101@10.77.226.41 Via:SIP/2.0/UDP 10.77.226.121 Content-Length:0 SoftX3000 INVITE Call-ID CSeq From To Via INVITE SDP Content-Length 0
6.3.3 407 Proxy Authentication Session Initiation Protocol Status-Line: SIP/2.0 407 Proxy Authentication Required Message Header Proxy-Authenticate:DIGEST realm="huawei.com",nonce="01efd3611a91400000000004" Via:SIP/2.0/UDP 10.77.226.121 Call-ID:call-973574765-4@10.77.226.121 CSeq:1 INVITE CSeq INVITE From:sip:8882100@10.77.226.41;tag=1c13959 To:sip:8882101@10.77.226.41;tag=EEEEEEEEEEEE44870002BFDF Contact:<sip:8882101@10.77.226.41:5050> Timestamp:49119 Timestamp Content-Length:0 SoftX3000 Contact A
6.3.4 ACK Session Initiation Protocol Request-Line: ACK sip:8882101@10.77.226.41 SIP/2.0 Message Header From: sip:8882100@10.77.226.41;tag=1c13959 To: sip:8882101@10.77.226.41;tag=eeeeeeeeeeee44870002bfdf Call-Id: call-973574765-4@10.77.226.121 Cseq: 1 ACK Accept-Language: en User-Agent: Pingtel/1.0.0 (VxWorks) Via: SIP/2.0/UDP 10.77.226.121 CONTENT-LENGTH: 0 407 A SoftX3000 SIP
6.3.5 INVITE Session Initiation Protocol Request-Line: INVITE sip:8882101@10.77.226.41 SIP/2.0 Message Header From: sip:8882100@10.77.226.41;tag=1c13959 To: sip:8882101@10.77.226.41 Call-Id: call-973574765-4@10.77.226.121 Cseq: 2 INVITE Content-Type: application/sdp Content-Length: 199 Accept-Language: en Supported: sip-cc, sip-cc-01, timer Contact: sip:8882100@10.77.226.121 User-Agent: Pingtel/1.0.0 (VxWorks) Proxy-Authorization: DIGEST USERNAME="0007550008882100", REALM="huawei.com", NONCE="01EFD3611A91400000000004", RESPONSE="7a13969b22c8037871341b3318b98885", URI="sip:8882101@10.77.226.41" Proxy-Authorization SoftX3000 E164 URL Via: SIP/2.0/UDP 10.77.226.121 Session Description Protocol Session Description, version (v): 0 Owner/Creator, Session Id (o): Pingtel 5 5 IN IP4 10.77.226.121 Session Name (s): phone-call Connection Information (c): IN IP4 10.77.226.121 Time Description, active time (t): 0 0 Media Description, name and address (m): audio 8766 RTP/AVP 0 96 8 Media Attribute (a): rtpmap:0 pcmu/8000/1 Media Attribute (a): rtpmap:96 telephone-event/8000/1
Media Attribute (a): rtpmap:8 pcma/8000/1 INVITE SoftX3000 A B SIP
6.3.6 100 TRYING Session Initiation Protocol Status-Line: SIP/2.0 100 Trying Message Header Call-ID:call-973574765-4@10.77.226.121 CSeq:2 INVITE From:sip:8882100@10.77.226.41;tag=1c13959 To:sip:8882101@10.77.226.41 Via:SIP/2.0/UDP 10.77.226.121 Content-Length:0 6.3.2
6.3.7 INVITE Session Initiation Protocol Request-Line: INVITE sip:8882101@10.77.226.221:5060 SIP/2.0 Message Header From:sip:8882100@10.77.226.41;tag=1c13959 To:sip:8882101@10.77.226.41 Call-ID:call-973574765-4@10.77.226.121 CSeq:2 INVITE Content-Type:application/SDP Content-Length:199 Accept-Language:en Supported:sip-cc,sip-cc-01,timer Contact:sip:8882100@10.77.226.121 User-Agent:Pingtel/1.0.0 (VxWorks) Via:SIP/2.0/UDP 10.77.226.41:5050;branch=095D4832760BC271F61488D8E1FA5E24.800 0000A,SIP/2.0/UDP 10.77.226.121 IFM Via IFM Record-Route:<sip:8882101@10.77.226.41:5050> Expires:7200 Expires B Organization:Huawei,India Timestamp:49133 Session Description Protocol Session Description, version (v): 0 Owner/Creator, Session Id (o): Pingtel 5 5 IN IP4 10.77.226.121 Session Name (s): phone-call Connection Information (c): IN IP4 10.77.226.121 Time Description, active time (t): 0 0
Media Description, name and address (m): audio 8766 RTP/AVP 0 96 8 Media Attribute (a): rtpmap:0 pcmu/8000/1 Media Attribute (a): rtpmap:96 telephone-event/8000/1 Media Attribute (a): rtpmap:8 pcma/8000/1 SoftX3000 B
6.3.8 180 RINGING Session Initiation Protocol Status-Line: SIP/2.0 180 Ringing Message Header From:sip:8882100@10.77.226.41;tag=1c13959 To:sip:8882101@10.77.226.41;tag=19366 Call-ID:call-973574765-4@10.77.226.121 CSeq:2 INVITE Via:SIP/2.0/UDP 10.77.226.121 Contact:sip:8882101@10.77.226.221 Contact B URL A URL User-Agent:Pingtel/1.2.6 (VxWorks) Content-Length:0 Timestamp:49204
6.3.9 200 OK Session Initiation Protocol Status-Line: SIP/2.0 200 OK Message Header From:sip:8882100@10.77.226.41;tag=1c13959 To:sip:8882101@10.77.226.41;tag=19366 Call-ID:call-973574765-4@10.77.226.121 CSeq:2 INVITE Content-Type:application/SDP Content-Length:199 Via:SIP/2.0/UDP 10.77.226.121 Record-Route:<sip:8882101@10.77.226.41:5050> Contact:sip:8882101@10.77.226.221 Allow:INVITE,ACK,CANCEL,BYE,REFER,OPTIONS,NOTIFY,REGISTER, SUBSCRIBE User-Agent:Pingtel/1.2.6 (VxWorks) Organization:Huawei,India Timestamp:50433 Session Description Protocol Session Description, version (v): 0 Owner/Creator, Session Id (o): Pingtel 5 5 IN IP4 10.77.226.221 Session Name (s): phone-call Connection Information (c): IN IP4 10.77.226.221 Time Description, active time (t): 0 0 Media Description, name and address (m): audio 8766 RTP/AVP 0 96 8 Media Attribute (a): rtpmap:0 pcmu/8000/1 Media Attribute (a): rtpmap:96 telephone-event/8000/1 Media Attribute (a): rtpmap:8 pcma/8000/1 B
6.3.10 ACK Session Initiation Protocol Request-Line: ACK sip:8882101@10.77.226.221 SIP/2.0 Message Header From:sip:8882100@10.77.226.41;tag=1c13959 To:sip:8882101@10.77.226.41;tag=19366 Call-ID:call-973574765-4@10.77.226.121 CSeq:2 ACK Accept-Language:en User-Agent:Pingtel/1.0.0 (VxWorks) Via:SIP/2.0/UDP 10.77.226.41:5050;branch=095D4832760BC271F61488D8E1FA5E24.800 0000A,SIP/2.0/UDP 10.77.226.121 Content-Length:0 Timestamp:50440 6.3.4
6.3.11 OPTION Session Initiation Protocol Request-Line: OPTIONS sip:8882100@10.77.226.121 SIP/2.0 Message Header From:sip:8882101@10.77.226.41;tag=19366 To:sip:8882100@10.77.226.41;tag=1c13959 Call-ID:call-973574765-4@10.77.226.121 CSeq:1 OPTIONS Accept-Language:en Supported:sip-cc,sip-cc-01,timer User-Agent:Pingtel/1.2.6 (VxWorks) Via:SIP/2.0/UDP 10.77.226.41:5050;branch=D1CC49D8E4C685C4BB546247A0B1D843.1, SIP/2.0/UDP 10.77.226.221 Content-Length:0 Organization:Huawei,India Timestamp:50449
6.3.12 BYE Session Initiation Protocol Request-Line: BYE sip:8882100@10.77.226.121 SIP/2.0 Message Header From:sip:8882101@10.77.226.41;tag=19366 To:sip:8882100@10.77.226.41;tag=1c13959 Call-ID:call-973574765-4@10.77.226.121 CSeq:2 BYE Accept-Language:en Supported:sip-cc,sip-cc-01,timer User-Agent:Pingtel/1.2.6 (VxWorks) Via:SIP/2.0/UDP 10.77.226.41:5050;branch=6451B864AA068C98EF20528C0C5CCEB7.1,S IP/2.0/UDP 10.77.226.221 Content-Length:0 Timestamp:51553 B SoftX3000 A BYE SIP