[Asterisk-Users] DID Trunk Lines and Caller ID

[Jared Smith]

On Mon, 2004-01-05 at 09:04, Steven Critchfield wrote:
> On Mon, 2004-01-05 at 09:28, Michael at matraex.com wrote:
> > I have an installation which is currenly using 14 DID Trunk Lines.  I
> > need to be able to use Caller ID information and currently it is not
> > available on these lines.
> > Is there another way to access this information?
> 
> Convert to PRI. 
> 
> While I am sure it is possible to order CallerID on a DID trunk, it
> sometimes is dependent on software revisions in the CO as to whether or
> not they can support it. We had this problem once. PRI will get you both
> called number(DID) but also the calling number all sent in the D channel
> so you should have nice fast answers if you choose.

Some long distance providers provide the information on the channel,
usually as *DNIS*ANI* or *ANI*DNIS*... I currently get something like
*16665551212*17775551213*.

It's not as slick as PRI, but it's often a lot less expensive.

Jared Smith