Then...If you want to...
See Transfer, on page 62.Transfer calls
See Conference, on page 45.Make conference calls
See Speed Dial, on page 62.Set up speed dialing
See Shared lines, on page 61.Share a phone number
See Ringtones, on page 22.Change the ring volume or type
See Call History, on page 19.View your missed calls
See Messages, on page 35.Listen to your voice messages
Additional information
Youcan access the most current Cisco documentation at this URL:
http://www.cisco.com/en/US/products/ps12965/tsd_products_support_series_home.html
Youcan access the Cisco website at this URL:
http://www.cisco.com/
Youcan access the most current licensing information at this URL:
http://www.cisco.com/en/US/products/ps12965/products_licensing_information_listing.html
Safety and performance information
The following sections provide information about the impact of power outages and external devices on your
Cisco Unified IP Phone.

Power outage

Youraccess to emergency service through the phone depends on the phone being powered. If there is a power
interruption, Service and Emergency Calling Service dialing will not function until power is restored. In case
of a power failure or disruption, you may need to reset or reconfigure the equipment before using the Service
or Emergency Calling Service dialing.

External devices

Cisco recommends using good quality external devices such as headsets, cables, and connectors that are
shielded against unwanted radio frequency (RF) and audio frequency (AF) signals.
Cisco Unified IP Conference Phone 8831 User Guide for Cisco Unified Communications Manager 9.0
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Preface
Additional information