T38 Speak before transfer to BLF

[SL2013]

Yes, that works, but it don't send the Telephonenumber to the other extension (it sends the extensionnumber who transfer the phone call). When transfer directly it send the (outside) number.

Is there an option for a button: 'Blind transfer' and also for 'Attended transfer' (so the user can make a choise!)

Edit: Problem solved (with a prefix key).