Caller ID Question

[jrosetto]

Lets start with an example.

Extension 101 calls extension 102 and 102 has follow me on and set to their cell phone. The caller ID shown on the cell phone is the outbound caller id set on extension 101.
This specific customer has all of their outbound set to their BTN number.

They would like when calling from one extension to another and follow me is set to a cell phone that they get the local extension number rather than the configured outbound BTN set on the extension.

Is this possible?

Is this legal?

Would really like some input on this as they are claiming their old carrier was able to do this.

 

[Jason Benedict]

this is subject to your SIP trunk provider that you peer with.

 

[jrosetto]

So does this mean as long as my provider allows it I can legally do it?

 

[Adrian Fretwell]

So does this mean as long as my provider allows it I can legally do it?

Depends which country you are in. Here in the UK, the ID (CLI) must be a routable number on the PSTN, AND you must have a legal right to use the number. Various SIP providers, including ourselves, enforce this to differing degrees.