This allows a call to be presented to your phone even when the phone is in use. A beep will be heard in the ear and Call Status will show who is calling. Press 'Recall' on the phone, or select the second call in Call Status, you will receive the waiting call and your current call will be placed on hold. You can then swap between calls by clicking the call you require.
Off Hook Operation:
Off Hook operation allows the phone to be controlled via the Phone Manger Pro without having to physically lift the phone on/off the cradle. When using a Hands Free phone and/or headset the 'phone' should be left off-hook permanently.
Busy on Held calls:
If on, when the user has a call on hold, new calls receive busy tone (ringing if analog) or are diverted to Voicemail if enabled, rather than ringing the user. Note this overrides call waiting when the user has a call on hold.