Cisco Systems 1.3.0 manual Initiated with the Voice Mail server

SIP IP Phone to SIP IP Phone: Forward to Voice Mail

Call Trace	The following call trace shows a SIP IP phone attempting to call another on-
	network SIP IP phone. The second phone is unanswered and the call is re-
	initiated with the Voice Mail server.

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SIP Headers

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sip-req:	INVITE sip:5210@192.168.56.180 SIP/2.0	[192.168.10.18:50443-
>192.168.56.180:5060]
Header:	Via: SIP/2.0/UDP 192.168.10.18:5060
Header:	From: sip:5218@192.168.10.18
Header:	To: <sip:5210@192.168.56.180>
Header:	Call-ID: c2943000-482e7-61caa-2e323931@192.168.10.18
Header:	CSeq: 100 INVITE
Header:	Expires: 180
Header:	User-Agent: Cisco IP Phone/ Rev. 1/ SIP enabled
Header:	Accept: application/sdp
Header:	Contact: sip:5218@192.168.10.18:5060
Header:	Content-Type: application/sdp
Header:	Content-Length: 221
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	SDP Headers
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Header:	v=0
Header:	o=CiscoSystemsSIP-IPPhone-UserAgent 25678 28140 IN IP4
192.168.10.18
Header:	s=SIP Call
Header:	c=IN IP4 192.168.10.18
Header:	t=0 0
Header:	m=audio 23994 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/2.0 100 Trying [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>
Header:	Call-ID: c2943000-482e7-61caa-2e323931@192.168.10.18
Header:	CSeq: 100 INVITE
Header:	Content-Length: 0
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	SIP Headers
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sip-req:	INVITE sip:5210@192.168.56.200:5060;user=phone SIP/2.0 [192.168.56.180:5060-
>192.168.56.200:5060]
Header:	Via: SIP/2.0/UDP 192.168.56.180:5060;branch=1
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>
Header:	Call-ID: c2943000-482e7-61caa-2e323931@192.168.10.18
Header:	CSeq: 100 INVITE
Header:	Proxy-Authorization: Basic VovidaClassXSwitch
Header:	Expires: 180
Header:	Record-Route: <sip:5210@192.168.56.180:5060;maddr=192.168.56.180>
Header:	Contact: <sip:5218@192.168.10.18:5060>
Header:	Content-Type: application/sdp
Header:	Content-Length: 221
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	SDP Headers
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Header:	v=0
Header:	o=CiscoSystemsSIP-IPPhone-UserAgent 25678 28140 IN IP4
192.168.10.18
Header:	s=SIP Call
Header:	c=IN IP4 192.168.10.18

C-95