Skip to main content

selectively block outbound caller ID

Posted by moshe on Sun, 03/08/2009

is there a way to selectively block outbound caller ID via feature code like *67 if yes how ?


Submitted by eeman on Sun, 03/08/2009 Permalink

not without custom programming otherwise you will break your billing cdr. It depend on if your provider accepts a P-Asserted-Identity sip header info for real callerid. You technically arent allowed to actually remove call data off the call. If one of your subscribers commits a felony using block callerid and you are unable to recover the true call detail information the FCC will shut you down. What a lot of LEC's decided to do is to mark a call private but then put the original callerid in P-Asserted-Identify.

Submitted by eeman on Sun, 03/08/2009 Permalink

theres another thread on the forum where some providers let you do it in this manner

exten => s,1,SipAddHeader(P-Asserted-Identity: <sip:${CALLERID(num)}>)

exten => s,n,SET(CALLERID(name)=hidden)

exten => s,n,SetCallerPres(prohib_passed_screen)