[Users] Cisco Gateway Disconnects the call

Hamid Ali Asgari Hamid at Parnak.com
Tue Jul 11 15:57:33 CEST 2006


I don't guess it is bad ACK routing, since the ACK routing works fine if the
UA is Windows Messenger.

But it may be a bad formated ACK (not sure). Bellow are the ACKS from both
UAs, one difference is in the RequestLine; the one form Wmessenger has
"lr=on" but the other one from the my UA sets only "lr". Alothough I am not
sure if this would be the case.

Hope SIP gurus and openser pros could shine a light on this.

Thanks,
Hamid

ACK from Windows Messenger
--------------------------
Session Initiation Protocol
RequestLine: ACK sip:85.15.7.18;ftag=27ccb8cd605f40e7bb41568eaec3a335;lr=on
SIP/2.0
	Method: ACK
	Resent Packet: False
Message Header
	Via: SIP/2.0/UDP 192.168.11.136:9560
	MaxForwards: 70
	From: "103 at shatel.ir" <sip:103 at shatel.ir>;
tag=27ccb8cd605f40e7bb41568eaec3a335; epid=9998c5a301
	  SIP Display info: "103 at shatel.ir"
	  SIP from address: sip:103 at shatel.ir
	  SIP tag: 27ccb8cd605f40e7bb41568eaec3a335
	To: <sip:0098146 at shatel.ir>;tag=22FA78219D
	  SIP to address: sip:0098146 at shatel.ir
	  SIP tag: 22FA78219D
	CallID: d253f8dd0d6546819347b0ba28986e24
	CSeq: 1 ACK
	Route: <sip:0098146 at 85.15.7.19:5060>
	UserAgent: RTC/1.3
	ContentLength: 0


ACK from my UA
---------------------------------
Session Initiation Protocol
RequestLine: ACK sip:85.15.7.18;ftag=analogsip28734;lr SIP/2.0
	Method: ACK
	Resent Packet: False
Message Header
	Via: SIP/2.0/UDP 192.168.11.102:5060;branch=z9hG4bK9072
	To: 0098146 <sip:0098146 at shatel.ir>;tag=9A65C1F0E
	  SIP Display info: 0098146
	  SIP to address: sip:0098146 at shatel.ir
	  SIP tag: 9A65C1F0E
	From: 102 at shatel.ir <sip:102 at shatel.ir>;tag=analogsip28734
	  SIP Display info: 102 at shatel.ir
	  SIP from address: sip:102 at shatel.ir
	  SIP tag: analogsip28734
	CallID: 32268 at 192.168.11.102
	CSeq: 101 ACK
	Route:<sip:0098146 at shatel.ir>
	Contact: <sip:102 at 192.168.11.102:5060>
	  Contact Binding: <sip:102 at 192.168.11.102:5060>
		URI: <sip:102 at 192.168.11.102:5060>
		  SIP contact address: sip:102 at 192.168.11.102:5060
	MaxForwards: 70
	ContentLength: 0








More information about the Users mailing list