From: Paul Kyzivat <[EMAIL PROTECTED]>

   - it only works for B2BUAs that work this way. Currently there are none. 
   And of course there can be several, including ones that have no 
   particular desire to make this feature work.

Well, getting call-completion to get through a B2BUA is going to
require *some* assumptions about what the B2BUA does.  What
assumptions can be safely made?

   - removing the callid is considered by some to be required to hide node 
   names (which are often part of the callid). If that it thought to be 
   important then copying the callid to another field will defeat the intent.

The advantage of using Call-Id to identify calls is that all calls
already have Call-Ids.  Without using Call-Id as the default
identifier, every call originator has to be revised to add another
identifier to every call.

What do you propose?

Dale
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