SIP IP Phone to SIP IP Phone: Forward All Calls
C-43
Header: Via: SIP/2.0/UDP 192.168.26.180:5060;branch=4,SIP/2.0/UDP
192.168.26.180:5060;branch=2,SIP/2.0/UDP 192.168.26.10:5060
Header: From: <sip:6711@192.168.26.10:5060>
Header: To: <sip:6716@192.168.26.180:5060>;tag=c2943000312610-0
Header: Call-ID: c2943000-de262-1b626-2e323931@192.168.26.10
Header: Server: Cisco IP Phone/ Rev. 1/ SIP enabled
Header: Contact: sip:6716@192.168.26.12:5060
Header: Record-Route:
<sip:6716@192.168.26.180:5060;maddr=192.168.26.180>,<sip:6716@192.168.26.180:5060;maddr=1
92.168.26.180>
Header: CSeq: 101 INVITE
Header: Content-Type: application/sdp
Header: Content-Length: 218
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SDP Headers
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Header: v=0
Header: o=CiscoSystemsSIP-IPPhone-UserAgent 1817 287 IN IP4 192.168.26.12
Header: s=SIP Call
Header: c=IN IP4 192.168.26.12
Header: t=0 0
Header: m=audio 30642 RTP/AVP 0 101
Header: a=rtpmap:0 pcmu/8000
Header: a=rtpmap:101 telephone-event/8000
Header: a=fmtp:101 0-11
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SIP Headers
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sip-res: SIP/2.0 200 OK [192.168.26.180:5060->192.168.26.10:5060]
Header: Via: SIP/2.0/UDP 192.168.26.10:5060
Header: From: <sip:6711@192.168.26.10:5060>
Header: To: <sip:6716@192.168.26.180:5060>;tag=c2943000312610-0
Header: Call-ID: c2943000-de262-1b626-2e323931@192.168.26.10
Header: CSeq: 101 INVITE
Header: Contact: <sip:6716@192.168.26.12:5060>
Header: Record-Route:
<sip:6716@192.168.26.180:5060;maddr=192.168.26.180>,<sip:6716@192.168.26.180:5060;maddr=1
92.168.26.180>
Header: Server: Cisco IP Phone/ Rev. 1/ SIP enabled
Header: Content-Type: application/sdp
Header: Content-Length: 218
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SDP Headers
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Header: v=0
Header: o=CiscoSystemsSIP-IPPhone-UserAgent 1817 287 IN IP4 192.168.26.12
Header: s=SIP Call
Header: c=IN IP4 192.168.26.12
Header: t=0 0
Header: m=audio 30642 RTP/AVP 0 101
Header: a=rtpmap:0 pcmu/8000
Header: a=rtpmap:101 telephone-event/8000
Header: a=fmtp:101 0-11
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SIP Headers
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sip-req: ACK sip:6716@192.168.26.180:5060 SIP/2.0 [192.168.26.10:50373-
>192.168.26.180:5060]
Header: Via: SIP/2.0/UDP 192.168.26.10:5060
Header: From: <sip:6711@192.168.26.10:5060>
Header: To: <sip:6716@192.168.26.180:5060>;tag=c2943000312610-0
Header: Call-ID: c2943000-de262-1b626-2e323931@192.168.26.10
Header: Route: <sip:6716@192.168.26.180:5060;maddr=192.168.26.180>,
<sip:6716@192.168.26.12:5060>
Header: CSeq: 101 ACK
Header: Content-Length: 0
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SIP Headers
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