Advanced Call Handling
Cisco Unified Wireless IP Phone 7921G for Cisco Unified Communications Manager 4.3, 5.1, 6.0 and Later 49
Using a Shared Line
Your system administrator might ask you to use a shared line if you:
• Have multiple phones and want one phone number
• Share call-handling tasks with coworkers
• Handle calls on behalf of a manager
Understanding Shared Lines
Remote-in-Use
The “In Use Remote” message and icon display on a Cisco Unified Wireless IP Phone 7921G when
another phone that shares your line has a connected call and Privacy is disabled. You can place and
receive calls as usual on the shared line, even when the “In Use Remote” message or
icon displays.
Sharing Call Information and Barging
Phones that share a line each display information about calls that are placed and received on the shared
line. This information might include caller ID and call duration. (See the
Privacy section for
exceptions.)
When call information is visible in this way, you and coworkers who share a line can add yourselves
to calls using either Barge or cBarge. See
Adding Yourself to a Shared-Line Call, page 50.
Barge—Allows you to join a shared-line call with an IP phone that has the built-in bridge enabled.
cBarge—Allows you to join a shared-line call with any IP phone and convert the call to a conference.
Privacy
The Cisco Unified Wireless IP Phone 7921G has Privacy enabled by default. Coworkers, who share
your line, cannot see information about your calls. If you want coworkers who share your line to see
information, you must have the Privacy feature configured on your phone. See
Preventing Others from
Viewing or Joining a Shared-Line Call, page 51.
Note The Cisco Unified Wireless IP Phone 7921G can support a maximum of 24 calls on a shared
line.
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