Change Caller ID extension number in extension-to-extension call

[Big George]

Hi all,
there is a way to present a differend caler-ID when one extension call another extension?

Use case:
- I have one extension number used on my desk phone, ex: 201. => this extension is public (know by all my collegues)
- I have another extension number used on my App, ex: 501 => this extension is "private" (nobody know that them exist)
- I use the "forwarding call" function set on desk phone: "when I'm DND forward call to 501".
Then, now I want to call my collegues using my App (501) but my collegues need to see "calling from 201" (in order to mantain "unknow" the 501 extension)

Thank you

 

[leejor]

This question came up not that long ago, with regards to ring groups (changing the caller ID to the RG number), and the consensus was that , no, you cannot change your caller ID internally

You might be able to do some jiggery pokery by using a loop trunk, but the consequences won't be desirable for other (outside) calls you make, along with using two licences per call. So, not really practical.