Benoit Panizzon
2011-Jul-14 13:46 UTC
[asterisk-users] cseq decreasing => 500 Server Error
Hello We have quite a strange phenomena in a genband c3 <=> asterisk 1.6.2.15 SIP interconnection. (also reproduced with an 1.8 asterisk) The Sequence: c3 => Asterisk Let's assume X < Y We get:> INVITE (cseq X)< 403 Unauthorized (cseq X)> INVITE+AUTH (cseq Y)< ACK (cseq Y) < TRYING (cseq Y) < 180 Ringing (cseq Y) < 200 OK (cseq) Not the C3 sometimes sends lower cseq on the second invite (X > Y) and for an identical invite we get:> INVITE (cseq X)< 403 Unauthorized (cseq X)> INVITE+AUTH (cseq Y)< 500 Server Error We analyzed about 50 calls of which about half resulted in a 500 Server Error. The only common thing with those who failed was cseq of the second invite being lower than the first. From my point of view, this should not be a problem as the second call should be independent. Any others observing this problem or able to explain this observation? Mit freundlichen Gr?ssen Benoit Panizzon -- I m p r o W a r e A G - ______________________________________________________ Zurlindenstrasse 29 Tel +41 61 826 93 07 CH-4133 Pratteln Fax +41 61 826 93 02 Schweiz Web http://www.imp.ch ______________________________________________________ -------------- next part -------------- A non-text attachment was scrubbed... Name: smime.p7s Type: application/pkcs7-signature Size: 2207 bytes Desc: not available URL: <http://lists.digium.com/pipermail/asterisk-users/attachments/20110714/14dbf49d/attachment.bin>