[asterisk-users] CallerID ANI issues

[mail-lists]

Hello,

We're having some issues with CallerID and I thought someone here might 
be able to shed some light as none of our carriers seem to know what I'm 
talking about.

The issues is this:

A client of ours uses an after-hours voicemail service as mandated by 
their corporate office. We have a Day/Night setting that lets them turn 
this on and off. A call comes in from one of their customers and gets 
forwarded back out to the voicemail service with the CallerID set to the 
clients DID. The voicemail service checks the callerID of the incoming 
call to determine which agency is calling.

The problem is this: The voicemail service (who uses verizon), looks at 
the ANI field in the CallerID which shows up as something other than our 
clients DID (notably our BILLING number) We've called two of our 
carriers (one a SIP provider, the other our PRI provider) and they both 
say they make no distinction between 'regular' CallerID and the ANI 
field. The PRI provider said if we have 'station-level' callerID (which 
we do) the number should show up fine.

I've contacted the voicemail service and they say there's nothing they 
can do on their end. I've played around with setting the ANI fields on 
our asterisk servers and as far as I can tell the ANI is correctly set 
to the same as the callerID (Tried Set(CALLERID(all) and 
Set(CALLERID(ANI) ).

Does anyone have any idea what we might look at next to get this 
resolved? I'm pretty eager to figure this out as we potentially have a 
dozen clients that are interested in signing with us, provided we have 
this working.

Thanks a lot!

Steve