While on a call, press the XFER button. The original call will be placed on hold and you will hear a dialtone. Dial the extension or phone number that you wish to transfer the call to and press the DIAL button. You can either wait for the person to answer and announce the transfer (an attended transfer) or you can transfer the call while it is still ringing (a blind transfer). In either case, when you are ready to transfer the call, press the XFER button a second time and the call will be transferred.