[asterisk-users] DAHDI: How to supress notification of changing CallerID on transfer?

[Maximilian Grobecker]

Hello out there,

I'm running an Asterisk 1.8.15-cert1 with DAHDI.
Today I noticed that Asterisk is signalling to the calling party the
current internal CallerID whenever I put a call to another internal phone.

Example:

Customer calls 020212345-555
 -> IVR answers and puts caller to the chosen queue
 -> Someone picks up the phone (Internal ext. 321)
 -> CallerID shown on customers device changes to
     020212345-321

Same when I park the call and pick it up on another phone.


I don't want this to happen and can't figure out how to disable this on
DAHDI or at least the current channel.
I tried "facilityenable=no" in chan_dahdi.conf, but this only supresses
signalling the on hold status.

We are using a german ISDN "Anlagenanschluss" (bri_cpe) whith DDI served
by the Deutsche Telekom, connected to a ISDN card which is used with DAHDI.


Is there a hidden config flag or something to disable this for DAHDI?
Or maybe a channel variable to temporarily disabling this on some channels?


THANK YOU!

Greetings from Wuppertal
Max