Knowing who transferred a call via CID prefix or other way

[joni1802 (Jonathan)]

Yes, it is possible to add a prefix or diversion header on transferred calls.
Take a look here:

Show different for incoming calls vs transfered calls

You can add a custom transfer context which adds for example a prefix to the caller id when the call got transferred so on the target phone the user will see something like this “Transferred: 123456789”. To give you an idea how to implement this, there is post about adding a call back on a transfer. See here: Return blind tranfers when not answered

Show different for incoming calls vs transfered calls

I was just tinkering around and if your deskphones are supporting the diversion header like our Yealink phones you could add a diversion header like the following. Use it in production at your own risk ! globals_custom.conf: TRANSFER_CONTEXT = blind-transfer-diversion extensions_custom.conf: [blind-transfer-diversion] exten => _X.,1,NoOp(Entering blind-transfer-diversion) exten => _X.,n,NoOp(Blindtransfer: ${BLINDTRANSFER}) ; Strip out the number which transfers the call. exten => _X.,n,Set…