[Freeswitch-users] UUID from Extension Number

[Jeremy Childs]

I'm trying to create a "works-anywhere" eavesdrop extension. I've got 
the demo application that uses the hash/spymap functionality working     
     correctly, but you would need the caller-id of the incoming call in 
order to eavesdrop on incoming calls. This could be fixed by capturing 
the destination number instead of the caller-id number for incoming 
calls (and I've done this, it works fine).

However, this breaks in the case where an attended transfer has happened 
(the UUID of the call that gets connected "belonged" to the receptionist).

The most robust thing I can think of is to do a live lookup of the call 
UUID using the "final" extension number. Is there any way to do this 
lookup from the dialplan?

To be clear, what I'd like to do is this:

Incoming call is picked up by receptionist (ext 100). Receptionist 
transfers call to extension 101. The Boss (extension 200), dials *88101 
which looks up the UUID of extension 101's current call, provides this 
UUID to the eavesdrop extension, and the eavesdrop proceeds.

There doesn't appear to be any way to do this from the dialplan, however 
-- am I missing something?