If you need to rewrite the caller-ID of the incoming call and want the rewritten number to apperar in QueueMetrics, you should set the following Asterisk dialplan variable: CALLERID(num). This variable gets written to the queue_log, so that the information can be picked up by QueueMetrics.

The popular TrixBox distro sets the authenticated caller-ID name in the CALLERID(name) variable but not in CALLERID(num); the following piece of diaplan will do the trick:

[from-trunk-custom]
exten => _X.,1,Set(CALLERID(num)=${CALLERID(name)})
exten => _X.,n,Set(CALLERID(name)=${CALLERID(name)})
exten => _X.,n,Goto(from-trunk,${EXTEN},1)


(thanks to Barry for pointing this out).