Could be. The ATA 2.16 Release Notes say the the following problem was fixed: a.. CSCdz87773 If the Cisco ATA sends an INVITE message that includes the user=phone parameter, the corresponding ACK message does not always contain the user=phone parameter.
----- Original Message ----- From: "Juha Heinanen" jh@lohi.eng.song.fi To: "Jiri Kuthan" jiri@iptel.org Cc: serusers@lists.iptel.org; "Ricardo Villa" ricvil@epm.net.co; aolchik@telenova.net Sent: Tuesday, May 27, 2003 12:19 PM Subject: Re: [Serusers] SER is not matching ACK Messages
Jiri Kuthan writes:
To fix the problem, I urge ATA users to urge Cisco. You can use some workarounds (like disabling tm "ruri_matching" tm parameter in the about to be released ser 0.8.11 version) but ATA is the primary place to fix. Actually, the best thing to do with ATA is to use RFC-3261 transaction matching -- 2541 matching has been obsoleted quite a while ago.
wasn't this the same bug that i found and cisco actually fixed a couple of months ago?
-- juha