Blind Transfer to external with originating phone number

[tobiasschroeder]

Our customer would like to have implemented the following.

User A calls from external to user B. User B answers the call. User B performs a blind transfer to user C. User C is also external. User C will display the phone number of user B, even after the call has been answered.

Is it possible that the number of user A is displayed at user C.

Provider --> GW --> CUCM --> IP Phone User B --> CUCM --> GW --> Provider

If a blind transfer to internal is performed, the number of user A is displayed.

Regards

Tobias

[Nithin Eluvathingal]

If you use "Originator" on gateway it will show  USER A mobile number as caller ID. But ISP will drop the call , as most of them don't allow to display caller ID other than your  DID range. with special request in our region they allow us to use the users A number as caller ID. 

[Mohammed al Baqari]

Not possible. Your telco will either overwrite the calling number to your
pilot or drop the call. This is required for telco billing reasons.

**** please remember to rate useful posts