[asterisk-users] outbound caller ID

[Jay R. Ashworth]

On Mon, Jul 30, 2007 at 10:40:57AM -0400, C F wrote:
> On 7/30/07, Vieri <rentorbuy at yahoo.com> wrote:
> > I would like to know if one can set the outgoing
> > caller ID within Asterisk when calls are going out
> > through:
> >
> > 1) an analog POTS line (I suppose not)
> > 2) a telco BRI line (I don't think so)
> > 3) a telco PRI line (maybe)
> > 4) a voip provider (surely)
>
> 1 No  2 I dont know. 3 Currently in the us the answer is yes

CNID, administratively, is assigned by the originating class-5 end
office of the LEC or CLEC.  Some carriers will permit you to specify
what it should be, administratively, and some switches will accept what
you send (definitely over a PRI, definitely at least some generics on a
DMS-100, possibly on a BRI, definitely not on some other switches and
generics).

Whether a VoIP provider will permit you to set it is probably
implementation-defined.

The FCC has a finger in this pie as well, I believe; there was recent
rulemaking about CNID spoofing, the results of which (I *think*) were
to impose as a regulation the perfectly sensible limitation that you
should only be permitted to send as originating CNID for the end office
to propagate Directory Numbers which are administratively yours.

Cheers,
-- jra
-- 
Jay R. Ashworth                   Baylink                      jra at baylink.com
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