Accessibility Features - Cisco 3951 Phone Manual

Inline power circuits provide current through the communication cable. Use the Cisco
Caution
provided cable or a minimum 24 AWG communication cable.
Using an External Power Supply
The following warnings apply when you use the external power supply with the
Cisco Unified IP Phone:
Warning This product relies on the building's installation for short-circuit (over current)
protection. Ensure that a fuse or circuit breaker no larger than 120 VAC, 15A U.S. (240 VAC,
10A international) is used on the phase conductors (all current-carrying conductors).
Warning The device is designed to work with TN power systems.
Warning The plug-socket combination must be accessible at all times because it serves as the
main disconnecting device.
Warning The power supply must be placed indoors.
Use only a Cisco specified power supply with this product.
Caution
Power Outage
Your accessibility to emergency service through the phone is dependent on the phone being powered.
If there is an interruption in the power supply, Service and Emergency Calling Service dialing will not
function until power is restored. In the case of a power failure or disruption, you may need to reset or
reconfigure equipment before using the Service or Emergency Calling Service dialing.

Accessibility Features

A list of accessibility features is available upon request.
Cisco Unified SIP Phone 3951 for Cisco Unified CallManager 5.1
Getting Started
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