Blind Transfer (Unannounced)
When on a call simply press Transfer on your handset. This will put the caller on hold. Then you dial the extension number (if known). Alternatively, if the person you would like to transfer to has been assigned to one of your buttons you can press that instead of dialling the extension. Then place the receiver down.
This is the same process as a blind transfer. However, when you dial the extension you wish to transfer to. Wait for the person on the other end to pick up. Announce the transfer and then place the receiver down.