[asterisk-users] CallerID inconsistently presented through ISDN/cellular networks

[Olivier]

Hi,

I'm still strugling with my CallerID presentation problem.
Let me remind it :

My setup is:
Alice cellphone <--GSM--><--ISDN--> Asterisk <-- ISDN --><--GSM--> Bob
cellphone

Ive configured Asterisk so that whenever Bob forwards its incoming call to
its cellphone, the later phone should present Alice's number.

I was originally told that sometimes Bob would be presented Alice's number,
sometimes the dialed number (which in this case, also match the ANI or the
receptionnist ID).
Now, I can't certify this ever happened : maybe, it did happen, maybe not.

What I can certify is this:
1. out of 32 different callers, 20 callers are presented with the correct
number and 12 with the dialed number,
2. all those 32 callers are cellphones operated by the same (incumbent)
telco which also operates ISDN,
3. Bob's cellphone is also operated by the same (incumbent) telco,
4. all this tries were done the same day, one after the other.

The best explanation I can think of is this:
"Depending on the route used, the ANI is used instead of the presented
caller ID".

To prove that, I'll try to "record" 2 calls for the same caller and toward
the same destination: one with the awaited presentation, one with a wrong
one.
(Sending this to the telco and have them change anything is an other story).


Comments and suggestions are welcome.

Regards
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