[cisco-voip] SIP 400 Bad request

[Adam Frankel]

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. 

CCM Traces with SIP Message and SIP Stack Trace turned on might give a 
clue as to the cause:

http://www.cisco.com/en/US/products/sw/voicesw/ps556/products_tech_note09186a0080094e89.shtml

Adam 




------------Original Message--------------
From: Jefflin Choi <jefflin.choi at gmail.com>
Sent: Tue, Mar 09, 2010 7:55:33 Am
To: cisco-voip at puck.nether.net
CC:
Subject: [cisco-voip] SIP 400 Bad request
> Hi,
>
> 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.
>
> Topology:
> SIP server ------------SBC(SIP)---------CCM7-----IP Phone(SCCP)
>
> Problem
> I'm getting 400 Bad request from Sniffer trace. I checked my Partition 
> and CSS including transformation mask and saw no problem.
> We are using UDP for sip protocol.
>
> Q.
> 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.
>
> Attached is the captured sniffer trace on CCM.
>
> Thanks in advance for the help.
>
> regards,
> Jeff
>
>
>
>
>
>
> ------------------------------------------------------------------------
>
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