[cisco-voip] SIP 400 Bad request

[Mark Holloway]

Sorry, just saw it attached.  Taking a look. :)

On Mar 9, 2010, at 5:55 AM, Jefflin Choi wrote:

> 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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