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<font size="-1"><font face="Arial">In certain 6.x versions, certain
characters in the From field were causing 400 Bad Request to be sent.
See CSCsu56892. This is probably a bug, maybe a new one. <br>
<br>
CCM Traces with SIP Message and SIP Stack Trace turned on might give a
clue as to the cause:<br>
<br>
<a class="moz-txt-link-freetext" href="http://www.cisco.com/en/US/products/sw/voicesw/ps556/products_tech_note09186a0080094e89.shtml">http://www.cisco.com/en/US/products/sw/voicesw/ps556/products_tech_note09186a0080094e89.shtml</a><br>
</font></font>
<pre class="moz-signature" cols="72">Adam </pre>
<br>
<span style="color: rgb(0, 0, 0);" class="headerSpan"><br>
<br>
------------Original Message--------------<br>
From: Jefflin Choi <a class="moz-txt-link-rfc2396E" href="mailto:jefflin.choi@gmail.com"><jefflin.choi@gmail.com></a><br>
Sent: Tue, Mar 09, 2010 7:55:33 Am<br>
To: <a class="moz-txt-link-abbreviated" href="mailto:cisco-voip@puck.nether.net">cisco-voip@puck.nether.net</a><br>
CC: <br>
Subject: [cisco-voip] SIP 400 Bad request</span>
<blockquote
style="border: medium none ! important; padding-left: 0px ! important; padding-right: 0px ! important; margin-left: 0px ! important; margin-right: 0px ! important;"
cite="mid:5c72afa81003090455u17ef642bs81d55f01f62300f@mail.gmail.com"
type="cite">Hi,<br>
<br>
I'm trying to troubleshoot and incoming call from SBC to CCM SIP trunk.
Outgoing call to SBC from IP Phone works fine. using G711ulaw codec
without security.<br>
<br>
Topology:<br>
SIP server ------------SBC(SIP)---------CCM7-----IP Phone(SCCP)<br>
<br>
Problem<br>
I'm getting 400 Bad request from Sniffer trace. I checked my Partition
and CSS including transformation mask and saw no problem.<br>
We are using UDP for sip protocol. <br>
<br>
Q.<br>
Any idea why CCM7 is sending 400 Bad request? There seem to be a reason
CCM7 is rejecting the SIP invite however i could not find it.<br>
<br>
Attached is the captured sniffer trace on CCM.<br>
<br>
Thanks in advance for the help.<br>
<br>
regards,<br>
Jeff<br>
<br>
<br>
<br>
<br>
<br>
<br>
<pre wrap="">
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</pre>
</blockquote>
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