Tomasz Zieleniewski
2007-Dec-21 14:55 UTC
[asterisk-users] Asterisk SIP handling - why 491 Request Pending response
Hi, I have the following situation I use asterisk as o gateway between networks. What is the reason for such response? What are the criteria for such evaluation? SIP/2.0 491 Request Pending Via: SIP/2.0/UDP 192.168.129.74:5160;branch=z9hG4bK17c3.17db29e7.0;received192.168.129.74 Via: SIP/2.0/UDP 192.168.129.74;branch=z9hG4bK17c3.23083974.0 Via: SIP/2.0/UDP 192.168.129.74:5070;branch=z9hG4bK5b33ae78;rport=5070 From: "IPFon" <sip:0225761853 at 192.168.129.74:5070>;tag=as7217acbc To: <sip:tzl at voip.touk.pl>;tag=as7217acbc Call-ID: 307fda656066a7e264e85cea0742e601 at 192.168.129.74 CSeq: 102 INVITE User-Agent: Asterisk PBX Allow: INVITE, ACK, CANCEL, OPTIONS, BYE, REFER, SUBSCRIBE, NOTIFY Supported: replaces Content-Length: 0 X-Asterisk-HangupCause: Normal Clearing X-Asterisk-HangupCauseCode: 16 CHeers tomasz -------------- next part -------------- An HTML attachment was scrubbed... URL: http://lists.digium.com/pipermail/asterisk-users/attachments/20071221/ec5c2dde/attachment.htm
Terry Wilson
2007-Dec-21 18:28 UTC
[asterisk-users] Asterisk SIP handling - why 491 Request Pending response
> What is the reason for such response?> SIP/2.0 491 Request Pending > Via: SIP/2.0/UDP > 192.168.129.74 > :5160;branch=z9hG4bK17c3.17db29e7.0;received=192.168.129.74 > Via: SIP/2.0/UDP 192.168.129.74 ;branch=z9hG4bK17c3.23083974.0 > Via: SIP/2.0/UDP 192.168.129.74:5070;branch=z9hG4bK5b33ae78;rport=5070 > From: "IPFon" <sip:0225761853 at 192.168.129.74:5070>;tag=as7217acbc > To: <sip:tzl at voip.touk.pl>;tag=as7217acbc > Call-ID: 307fda656066a7e264e85cea0742e601 at 192.168.129.74 > CSeq: 102 INVITE > User-Agent: Asterisk PBX > Allow: INVITE, ACK, CANCEL, OPTIONS, BYE, REFER, SUBSCRIBE, NOTIFY > Supported: replaces > Content-Length: 0 > X-Asterisk-HangupCause: Normal Clearing > X-Asterisk-HangupCauseCode: 16Asterisk will send a 491 Request Pending when it is currently processing an INIVTE on a particular call and it gets another INVITE that isn't a retransmission. -------------- next part -------------- An HTML attachment was scrubbed... URL: http://lists.digium.com/pipermail/asterisk-users/attachments/20071221/a0e69d9d/attachment.htm