[Asterisk-Users] Outgoing CallerID on PRI problems

[Alastair Maw]

On 29/06/04 15:13, McInnis, JP wrote:

> The monitor shows that the CallerID is being set to the specified
> number, but yet when the call is received on the user end the ID is
> always the base number of our DID.  [...]

There are many things to try that others haven't touched on.

  - Make sure your pridialplan setting is correct for both dialled *and*
    presented number.

  - Make sure you're sending the right number of digits. You can ask your
    telco how many to send if they're clueful and you can find the right
    techie to talk to.

  - Some things are misleading. For example, we discovered we could set our
    presentation TON (pridialplan) to be international, and that this would
    work for most lines, but that for for some calls routed over least-cost
    routing to mobile operators and the like the caller ID wasn't appearing
    on the remote party's 'phone. We discovered that the telco only
    properly supports the TON being national on their switch.

One of our telcos requires a different pridialplan (type of number, or 
TON) for the presented number than for the dialled number, which Asterisk 
doesn't natively support. We realised this must be the case because we 
tried everything else and when you do a "pri debug span x" (where x should 
be replaced by a span number, obviously) in the call setup it keeps 
claiming you have an invalid number being presented (I don't have the 
precise log to hand, I'm afraid). If you discover this is the case, e-mail 
me and I can send you a patch. I ought to get around to adding a bug 
report/feature request about that, too. :)

You may also want to check out the Callingpres() app. For example, to hide 
caller ID on many PRI switches, first you have to set it to something, 
then you have to specify that you want it hidden. Otherwise Asterisk 
doesn't know what TON to set (because there isn't a number), so it sets 
the TON to unknown (0), and it doesn't work:

[dialZapHideCli]
exten => _X.,1,SetCallerID(1234567890)
exten => _X.,2,Callingpres(35)
exten => _X.,3,Dial(Zap/g1/${EXTEN})

Regards,

Alastair

-- 
Alastair Maw
Systems Analyst
http://www.mxtelecom.com