[asterisk-users] Newbie question: how to proxy the *real* caller-id on find-me/follow-me

[Philipp Kempgen]

Anselm Martin Hoffmeister wrote:

> In most cases it seems to end at
> the fact that providers "correct" caller-ids they get from the calling
> party: If you send any number which is assigned to the PRI (or SIP
> trunk), that is fine; if you send another number, it will be changed to
> the (first) number of the PRI/trunk.
> 
> Few providers allow for "foreign" caller ids to be sent over their
> equipment - in some countries this is even illegal.
> 
> For example, one of my providers (German) allows to set any CALLERID,
> but their documentation warns to not do stupid tricks, as calls can be
> tracked and using malicious information will be prosecuted. This feature
> is to be used only for sending _my_ cell phone number etc.

Do you know of any GSM providers/contracts where "faking
for a valid reason" is possible?

Regards,
  Philipp Kempgen

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