Cisco 7961G Administration Guide

Chapter 3 Setting Up the Cisco IP Phone
Installing the Cisco IP Phone
3-8
Cisco IP Phone Administration Guide for Cisco CallManager, Cisco IP Phone 7961G/7961G-GE and 7941G/7941G-GE
OL-6966-01
Using External Devices with Your Cisco IP Phone
The following information applies when you use external devices with the
Cisco IP Phone:
Cisco recommends the use of good quality external devices (speakers,
microphones, and headsets) 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:
• 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.
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 speakers, microphones, and
headsets that are fully compliant with the EMC Directive [89/336/EC].
Installing the Cisco IP Phone
You must connect the Cisco IP Phone to the network and to a power source before
using it. See Figure 3-1 for a graphical overview of the procedures that follow.
Note Before using external devices, read the “Using External Devices with Your
Cisco IP Phone” section on page 3-8 for safety and performance information.

Cisco 7961G Specifications

General

Brand	Cisco
Model	7961G
Category	IP Phone
Language	English