From: "Einat Soudry" <[EMAIL PROTECTED]>

   Is it a normal behavior that the port in the Record -Route/Via
   header is 5060 although it is different from the used source port?

It's perfectly legal, though not that common.  E.g., the sipX
open-source proxy does this.  But agents that "do not use symmetric
signalling" have a harder time dealing with NATs and firewalls.

Dale
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