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‎04-23-2013 12:29 PM

HP Recommended

Hello community,

 

I'm trying to find out if there's a configuration option within 3.2.X or 4.0.X to force regeneration of call-id upon REGISTER. I have combed through the admin guides and Polycom site for information but I have not been able to find anything on the topic so far. RFC 3261 states this is possible :

 

( http://tools.ietf.org/html/rfc3261#section-8.1.1.4 )
8.1.1.4 Call-ID

   The Call-ID header field acts as a unique identifier to group
   together a series of messages.  It MUST be the same for all requests
   and responses sent by either UA in a dialog.  It SHOULD be the same
   in each registration from a UA.

 

SHOULD != MUST but I'm thinking it may not be supported by Polycom. I did find an explination of why it "SHOULD" be the same here :

 

( https://lists.cs.columbia.edu/pipermail/sip-implementors/2002-October/003963.html )
The requirement that an UA SHOULD use the same call-id for all registration during a single boot cycle is to ensure sequencing of the Register requests. It ensures that an out-of-order REGISTER request doesnot do any harm. (change or remove a binding registered by a REGISTER request sent after it). Section 10.3, step 8 explains the processing of the Registrar w.r.t to callids.

 

Regards,

Matt

 

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