Cisco 8832 User Manual page 40

To resume a call from hold, press Resume.
When you've left a call on hold too long, you'll be notified with these cues:
Single ring, repeating at intervals
Flashing LED bar
Visual notification on the phone screen
Press Answer to resume the held call.
You can easily switch between active and held calls.
Press Swap to switch to the held call.
You can forward calls from your phone to another number.
There are two ways of forwarding your calls:
Forward all calls
Forward calls in special situations, such as when the phone is busy or there is no answer.
When a phone is forwarded, you see the Forward all
When the phone is inactive, press Forward All.
icon on the screen.