Cisco Systems 1.3.0 manual SIP IP Phone to SIP IP Phone Call Setup and Disconnect

	SIP IP Phone to SIP IP Phone: Call Setup and Disconnect
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sip-req:	ACK sip:5120@192.168.36.200:5060;user=phone SIP/2.0 [192.168.36.180:5060-
>192.168.36.200:5060]
Header:	Via: SIP/2.0/UDP 192.168.36.180:5060;branch=3
Header:	From: <sip:5121@192.168.6.21:5060>
Header:	To: <sip:5120@192.168.36.180:5060>
Header:	Call-ID: c2943000-e0563-2a1ce-2e323931@192.168.6.21
Header:	CSeq: 100 ACK
Header:	Content-Length: 0
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	SIP Headers
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sip-req:	INVITE sip:5120@192.168.6.20:5060 SIP/2.0	[192.168.36.180:5060-
>192.168.6.20:5060]
Header:	Via: SIP/2.0/UDP 192.168.36.180:5060;branch=4
Header:	Via: SIP/2.0/UDP 192.168.36.180:5060;branch=2
Header:	Via: SIP/2.0/UDP 192.168.6.21:5060
Header:	From: <sip:5121@192.168.6.21:5060>
Header:	To: <sip:5120@192.168.36.180:5060>
Header:	Call-ID: c2943000-e0563-2a1ce-2e323931@192.168.6.21
Header:	CSeq: 100 INVITE
Header:	Expires: 180
Header:	Record-Route:

<sip:5120@192.168.36.180:5060;maddr=192.168.36.180>,<sip:5120@192.168.36.180:5060;maddr=1

92.168.36.180>

Header:	Contact: <sip:5121@192.168.6.21:5060>
Header:	Content-Type: application/sdp
Header:	Content-Length: 219
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	SDP Headers
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Header:	v=0
Header:	o=CiscoSystemsSIP-IPPhone-UserAgent 16264 18299 IN IP4 192.168.6.21
Header:	s=SIP Call
Header:	c=IN IP4 192.168.6.21
Header:	t=0 0
Header:	m=audio 25282 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 [192.168.6.20:50753->192.168.36.180:5060]
Header:	Via: SIP/2.0/UDP 192.168.36.180:5060;branch=4,SIP/2.0/UDP
192.168.36.180:5060;branch=2,SIP/2.0/UDP 192.168.6.21:5060
Header:	From: <sip:5121@192.168.6.21:5060>
Header:	To: <sip:5120@192.168.36.180:5060>;tag=c29430002e0620-0
Header:	Call-ID: c2943000-e0563-2a1ce-2e323931@192.168.6.21
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 [192.168.6.20:50753->192.168.36.180:5060]
Header:	Via: SIP/2.0/UDP 192.168.36.180:5060;branch=4,SIP/2.0/UDP
192.168.36.180:5060;branch=2,SIP/2.0/UDP 192.168.6.21:5060
Header:	From: <sip:5121@192.168.6.21:5060>
Header:	To: <sip:5120@192.168.36.180:5060>;tag=c29430002e0620-0
Header:	Call-ID: c2943000-e0563-2a1ce-2e323931@192.168.6.21
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 [192.168.36.180:5060->192.168.6.21:5060]
Header:	Via: SIP/2.0/UDP 192.168.6.21:5060
Header:	From: <sip:5121@192.168.6.21:5060>

C-13