Summary:ASTERISK-00420: SIP Call Seq Error (SIP/2.0 481 Invalid CSeq Number)
Reporter:gus (gus)Labels:
Date Opened:2003-10-23 11:05:58Date Closed:2011-06-07 14:10:43
Versions:Frequency of
Environment:Attachments:( 0) trace_as5300.txt
( 1) trace-pbx.txt
Description:I have problem with * and 5300, when the incoming and outgoing call are
routed thru the same SIP gateway (AS5300).


   -- Executing Dial("SIP/-081221b0", "SIP/99952880474@") in
new stack
   -- Called 99952880474@
   -- SIP/ is ringing
   -- SIP/ answered SIP/-081221b0
   -- Attempting native bridge of SIP/-081221b0 and SIP/
   -- Got SIP response 481 "Invalid CSeq Number" back from
 == Spawn extension (default, 2003, 1) exited non-zero on 'SIP/-081221b0'
   -- Got SIP response 481 "Invalid CSeq Number" back from
   -- Got SIP response 481 "Invalid CSeq Number" back from

I attach * and 5300 trace.
Comments:By: gus (gus) 2003-10-23 11:07:22

noc2pbx*CLI> show version
Asterisk CVS-10/22/03-12:37:21 built by root@noc2pbx on a i686 running Linux

By: John Todd (jtodd) 2003-10-24 00:36:04

So are you just "hairpinning" the call through Asterisk?  Do you have "canreinvite=no" on this peer, or are you expecting the call to re-invite itself on the 5300?

By: gus (gus) 2003-10-24 05:47:20

I'm try to build an announcement system, and I tried to force to * with 'canreinvite=no', but * doesn't see that changes in sip.conf (at least doesn't work as expected).

By: gus (gus) 2003-12-02 17:30:04.000-0600

This issue is resolved. Adding insecure=yes works great.
Please close.