To transfer a call to another extension:
1. Press whatever line button is not in use. The caller will go on hold, and the line will flash.
2. Dial the extension to which you want to transfer. In some cases you might want to talk to the person you dialed, to let them know that you are transferring a call from a certain person, or to let them know the circumstances of the call before you put the transfer through. It is up to you.
3. Press the Transfer button, and hang up.