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Chapter 3

Setting Up the Cisco IP Phone

External Speakers

External Microphone

OL-4314-01

If you use external microphone or speakers, be sure to use devices that meet the

recommendations described in the

Phone" section on page

To prevent users from using these external devices when the phone is using in-line

power, the ports (see

Figure

this sticker before using these external devices.

Additionally, the Cisco IP Phone 7970 has end-user configurable settings for

controlling the sound output to these external devices (Settings > User

Preferences > Audio Preferences). When the phone is using in-line power, the

sound settings for external devices are disabled. However, if the phone is using

external power, and you want to use external sound devices, be sure to help users

choose the appropriate settings. Details about these settings are included in the

Help available on the phone (via the ? button).

If the phone loses power, it will restart. If the external power supply is available

after the restart, the external devices remain available. If the external power

supply is unavailable and the phone switches to in-line power, the external devices

are disabled, regardless of the current audio settings. When sufficient power is

provided by the external power supply, the phone will restart again and the

external devices will be available.

You can plug a PC-compatible powered speaker into the 3.5 mm Speaker jack on

the left side of the phone. External speakers can enhance the quality of the sound

that you hear from your phone.

Be sure to use speakers that meet the guidelines described in the

Devices with Your Cisco IP Phone" section on page

To use an external speaker, you must configure the appropriate setting on the

Speakers menu on the phone (choose Settings > User Preferences > Audio

Preferences > Speakers). For more information, refer to the Help available on the

phone via the ? button.

You can plug a PC-compatible microphone into the 3.5 mm Microphone jack on

the left side of the phone (see

microphone input, and it is compatible with monophonic or single channel

Cisco IP Phone 7970 Administration Guide for Cisco CallManager 3.3

"Using External Devices with Your Cisco IP

3-8.

3-1) have a sticker plug over them. You must remove

Figure

3-1). This microphone jack supports stereo

Before You Begin

"Using External

3-8.

3-5