[Asterisk-Users] ANI II/Payphone indication

[Kyle Thomas]

There is no IE ( information element) in the isdn setup for this
indicator. Of course with ISUP(SS7) FGD trunks it is delivered in the OLI ISUP
parameter

On Tue, 20 Apr 2004, James Sharp wrote:

> > Quickie: Does anyone out there have experience with PRI delivery of ANI II
> > information?
> >
> > Specifically, I want to know if it's possible from within Asterisk to know
> > if the inbound call (which may or may not be to an 800 number) came from a
> > payphone or not. I know with some 800 providers it's possible to block
> > inbound calls from payphones (due to the FCC surcharge etc) but was
> > wondering how accessible that information is once the call hits my box.
>
> I'm not sure about PRIs, but when I did it with Feature Group D trunks,
> the information came in as ANI II info digits prepended to the ANI.  I had
> to modify * a bit, though, because it was stripping off the info digits
> and throwing them away.
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