Cisco Systems 1.3.0 manual SIP Phone to Phone via Gateway Called Party is Busy

SIP Phone to Phone via Gateway: Called Party is Busy

Header:	Via: SIP/2.0/UDP 192.168.26.10:5060
Header:	From: <sip:6711@192.168.26.10:5060>
Header:	To: <sip:93831069@192.168.26.180:5060>;tag=25A5AD44-1FE9
Header:	Call-ID: c2943000-3e262-e4dc-2e323931@192.168.26.10
Header:	CSeq: 100 ACK
Header:	Route: <sip:93831069@192.168.16.210:5060>
Header:	Proxy-Authorization: Basic 123
Header:	Content-Length: 0
-----------------------------------------------------------------
	SIP Headers
-----------------------------------------------------------------
sip-req:	ACK sip:93831069@192.168.16.210:5060 SIP/2.0 [192.168.26.110:5060-
>192.168.16.210:5060]
Header:	Via: SIP/2.0/UDP 192.168.26.110:5060;branch=4
Header:	Via: SIP/2.0/UDP 192.168.26.180:5060;branch=2
Header:	Via: SIP/2.0/UDP 192.168.26.10:5060
Header:	From: <sip:6711@192.168.26.10:5060>
Header:	To: <sip:93831069@192.168.26.180:5060>;tag=25A5AD44-1FE9
Header:	Call-ID: c2943000-3e262-e4dc-2e323931@192.168.26.10
Header:	CSeq: 100 ACK
Header:	Content-Length: 0

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