Carlos E. R. wrote:
that for billing. However, they have no idea what may be connected to that trunk at the customer's end. It could be a local PBX or it could be extended just about anywhere in the world, by a variety of means. The snag is that the identification has to be carried forward to the next telco receiving the
The phone company can still identify the phone trunk a call came in to them on and use phone call, which is why caller ID is mandatory here. What I do not know is to what extent the PBX can forward an ID or not, because although my knowledge is becoming fuzzier with time, I think that the ID was assigned on the big exchanges, not on the PBX. You say you can do that on the PBX, but I simply do not know if it is possible here or not.
That number is carried over SS7 on the POTS network and a similar method exists for SIP. If a carrier does not pass on that number, they're violating the SS7 specs. -- To unsubscribe, e-mail: opensuse+unsubscribe@opensuse.org To contact the owner, e-mail: opensuse+owner@opensuse.org