SIP IP Phone to SIP IP Phone: Forward to Voice Mail
C-99
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/2.0 100 Trying [192.168.10.10:50783->192.168.56.180:5060]
Header: Via: SIP/2.0/UDP 192.168.56.180:5060;branch=4,SIP/2.0/UDP
192.168.56.220:5074;branch=102,SIP/2.0/UDP 192.168.56.180:5060;branch=2,SIP/2.0/UDP
192.168.10.18:5060
Header: From: <sip:5218@192.168.10.18:5060>
Header: To: <sip:5210@192.168.56.180:5060>;tag=c2943000e6fe50-0
Header: Call-ID: c2943000-482e7-61caa-2e323931@192.168.10.18
Header: Server: Cisco IP Phone/ Rev. 1/ SIP enabled
Header: CSeq: 100 INVITE
Header: Content-Length: 0
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SIP Headers
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sip-res: SIP/2.0 180 Ringing [192.168.10.10:50783->192.168.56.180:5060]
Header: Via: SIP/2.0/UDP 192.168.56.180:5060;branch=4,SIP/2.0/UDP
192.168.56.220:5074;branch=102,SIP/2.0/UDP 192.168.56.180:5060;branch=2,SIP/2.0/UDP
192.168.10.18:5060
Header: From: <sip:5218@192.168.10.18:5060>
Header: To: <sip:5210@192.168.56.180:5060>;tag=c2943000e6fe50-0
Header: Call-ID: c2943000-482e7-61caa-2e323931@192.168.10.18
Header: Server: Cisco IP Phone/ Rev. 1/ SIP enabled
Header: CSeq: 100 INVITE
Header: Content-Length: 0
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SIP Headers
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sip-res: SIP/2.0 180 Ringing [192.168.56.180:5060->192.168.56.220:5074]
Header: Via: SIP/2.0/UDP 192.168.56.220:5074;branch=102
Header: Via: SIP/2.0/UDP 192.168.56.180:5060;branch=2
Header: Via: SIP/2.0/UDP 192.168.10.18:5060
Header: From: <sip:5218@192.168.10.18:5060>
Header: To: <sip:5210@192.168.56.180:5060>;tag=c2943000e6fe50-0
Header: Call-ID: c2943000-482e7-61caa-2e323931@192.168.10.18
Header: CSeq: 100 INVITE
Header: Server: Cisco IP Phone/ Rev. 1/ SIP enabled
Header: Content-Length: 0
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SIP Headers
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sip-res: SIP/2.0 180 Ringing [192.168.56.220:5074->192.168.56.180:5060]
Header: Via: SIP/2.0/UDP 192.168.56.180:5060;branch=2
Header: Via: SIP/2.0/UDP 192.168.10.18:5060
Header: From: <sip:5218@192.168.10.18:5060>
Header: To: <sip:5210@192.168.56.180:5060>;tag=c2943000e6fe50-0
Header: Call-ID: c2943000-482e7-61caa-2e323931@192.168.10.18
Header: CSeq: 100 INVITE
Header: Server: Cisco IP Phone/ Rev. 1/ SIP enabled
Header: Content-Length: 0
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SIP Headers
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sip-res: SIP/2.0 180 Ringing [192.168.56.180:5060->192.168.10.18:5060]
Header: Via: SIP/2.0/UDP 192.168.10.18:5060
Header: From: <sip:5218@192.168.10.18:5060>
Header: To: <sip:5210@192.168.56.180:5060>;tag=c2943000e6fe50-0
Header: Call-ID: c2943000-482e7-61caa-2e323931@192.168.10.18
Header: CSeq: 100 INVITE
Header: Server: Cisco IP Phone/ Rev. 1/ SIP enabled
Header: Content-Length: 0
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SIP Headers
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sip-req: CANCEL sip:5210@192.168.56.180:5060 SIP/2.0 [192.168.56.220:5074-
>192.168.56.180:5060]