Using External Devices; Installing The Cisco Unified Ip Phone - Cisco 7931G Administration Manual

Chapter 3 Setting Up the Cisco Unified IP Phone

Using External Devices

The following information applies when you use external devices with the Cisco Unified IP Phone:
Cisco recommends the use of good quality external devices that are shielded (screened) against
unwanted radio frequency (RF) and audio frequency (AF) signals.
Depending on the quality of these devices and their proximity to other devices such as mobile phones or
two-way radios, some audio noise may still occur. In these cases, Cisco recommends that you take one
or more of the following actions:
•
•
•
•
•
Cisco cannot guarantee the performance of the system because Cisco has no control over the quality of
external devices, cables, and connectors. The system will perform adequately when suitable devices are
attached using good quality cables and connectors.
Caution In European Union countries, use only external headsets that are fully compliant with the EMC Directive
[89/336/EC].

Installing the Cisco Unified IP Phone

You must connect the Cisco Unified IP Phone to the network and to a power source before using it. For
a graphical representation of the connections, see
Perform the steps shown in
Table 3-1
Installation Step
1.
2.
3.
Cisco Unified IP Phone 7931G Administration Guide for Cisco Unified Communications Manager 8.0 (SCCP and SIP)
OL-20798-01
Move the external device away from the source of the RF or AF signals.
Route the external device cables away from the source of the RF or AF signals.
Use shielded cables for the external device, or use cables with a better shield and connector.
Shorten the length of the external device cable.
Apply ferrites or other such devices on the cables for the external device.
Table 3-1

Installing the Cisco Unified IP Phone

Connect the handset to the Handset
port.
Connect a headset to the Headset
port.
Connect the power supply to the
Cisco DC Adapter port.
Figure 3-1.
to install a Cisco Unified IP Phone.
Notes
—
Optional. You can add a
headset later if you do
not connect one now.
Optional.
Installing the Cisco Unified IP Phone
Reference
—
For the supported headsets, see
Headset, page 3-4.
See Providing Power to the
Phone, page 2-3.
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