Transfer EXT/EXT - Displayed number

[alexstreet3]

Hi everyone,

I try to figure out how during a transfer ext/ext I can displayed on the transferred side the number of the first caller.

System: OXO R4

Pictorial explanation:
External User A calls an External User B. User B transfers the call to Ext user C.
I'd like the number of User A to be displayed on User C's phone.

Thank you in advance for your help.

[Konstantinos.E]

does your provider supports this function?

[fery_s]

that must be support by your provider too, some of provider support it just for main number (DDI 0)