[cisco-voip] calls disconnecting on pickup?

[Madziarczyk, Jonathan]

Strange problem I'm troubleshooting.

 

External caller calls into a specific number, about 1 sec after they
call they get a fast busy.

 

Internal user hears the phone ring, when they pick it up there is no
longer an active call on the phone.

 

According to CAR there is never a "Connect" timestamp, I see the call
start and call end though.  It's usually a second or less.

 

Only seems to happen with this extension, and only with certain incoming
callers.  Other callers to that same number have no problem getting
through.

 

I'm at a loss as to what could be causing this...Faulty phone hanging up
on them?  Problem on the caller's side?  PRI glitches?

 

Any way I can find more info, maybe even a reason the call is being
disconnected?

 

JonM

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