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(a)lohi.eng.song.fi>
To: "Jiri Kuthan" <jiri(a)iptel.org>
Cc: <serusers(a)lists.iptel.org>rg>; "Ricardo Villa"
<ricvil(a)epm.net.co>co>;
<aolchik(a)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