Cisco Systems 7902G Manual De Usuario
C H A P T E R
1-1
Cisco IP Phone Administration Guide for Cisco CallManager 3.3, Cisco IP Phones 7902G/7905G/7912G
OL-6313-01
1
An Overview of the Cisco IP Phone
The Cisco IP Phone provides functionality similar to that of a traditional analog
phone, but it must be configured and managed like other network devices.
phone, but it must be configured and managed like other network devices.
The Cisco IP Phone supports G.711, G.729, G.729a, G.729b, and G.729ab audio
compression.
compression.
This section covers the following topics:
•
•
•
•
Caution
Using a cell phone or mobile phone in close proximity to a Cisco IP Phone might
cause interference with the speakerphone on your Cisco IP Phone.
cause interference with the speakerphone on your Cisco IP Phone.
Caution
If you plan to power your phone locally (instead of receiving power through the
Ethernet connection), use only a Cisco 48V volt power supply designed to work
with a Cisco IP Phone.
Ethernet connection), use only a Cisco 48V volt power supply designed to work
with a Cisco IP Phone.