On Thu, 2010-03-04 at 23:05 -0500, Andres Jaramillo wrote:
> 
> Thanks for answer,  
> 
> Is this normal ? 

What's normal?

> And why the audioCodes says that  One of the basic headers (To, From,
> CSeq, Call-Id, Via) is missing in the message ? 

Well, neither the To nor the From headers have valid values in them
(they are supposed to have SIP URLs - unless you edited them out when
posting).  Not that it matters - those headers are essentially ignored
in a SUBSCRIBE request.

> Is there a way to eliminate these events ?    

The phones seem to be attempting to do peer-to-peer presence.  I suspect
that could be turned off, but I don't know for sure.

The routing of those requests to the gateway is a function of the
addresses and the dial plans.  We have an outstanding issue to support
filtering dial plan routing by method, but it's not on the road map yet.

In theory, the gateway should just be rejecting these with some
permanent error - do you have reason to believe they are causing some
problem or are you just reading SIP logs for fun?  :-)


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