Call Park Extension:
Need a Break? Call Park Can Come to the Rescue!
The Call Park feature allows you to place a call on hold, so it can be retrieved from another phone in your company (for example, a phone in another office or in a conference room).
If you are on an active call while on your phone, you can park the call to a call park extension, someone on another phone in your system can then dial the call park extension to retrieve the call.