[asterisk-biz] Multi User CallerID - One System

[Chris H]

Hello....

Just got a question that I cant seem to find anywhere.. although it
might have been a 'boy' look. so sorry.

I have a central asterisk server, which has a bunch of SIP and IAX
trunks coming into it for a few community organizations just trying to
do this to try and keep there costs down. 
(So not Biz, but more than user at home)

So we have at least 4 blocks of DIDs being pushed into the server, and
getting them out to their remote asterisk boxes is off the top of my
head something like:
exten = 555672[0-9],1,Dial(SIP/ipaddress.of.remote/${EXTEN})

So any inbound 555672[0-9] whatever, gets trunked to their box, and then
they can do what they like with it at their end.
Seems to work well enough, well, they have not complained...
And I say off the top of my head, because I cant log into the box at the
moment.. sorry.

And outbound from their asterisk simply an IAX or SIP connection back
and call gets pushed out... 
Again seems to work, and billing is simple... because we send a pilot'
CallerID...
Usually their Office/Reception DID and just watch for that in the
billing records.

However now some have asked if they can present 'A-Party Calling' so
their DID gets sent out when they make an outbound call.. 

and this is what I am not quite sure how to do... 
I don't want Org A being able to present Org B's callerID data - or vice
versa.
I would also like to keep a record of what each Org' dialed for
billing.. 

But I also want to keep it as simple for people to Admin where need be
(at the remote end)
Most are just volunteers and although its working well now, don't want
to over complicate the system. 

So even if someone could point me in the right direction.. 
I would not really like to create a reg peer per remote extension..
because then we would need to know all those details.
I would like them to be able to present a/any CallerID and if it's part
of their allocated range, deliver it to the telco and if not 
part of their range, present the Pilot number....
Bearing in mind that I think 2 are on the same telco, the other two are
on separate.

Testing has shown that the telco will allow us to present numbers from
both ranges to them, and have them delivered out CallerID.
This is not ideal.. and something I would love to know how to
correct/stop.

Thanks so much in advance, 







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