Power Outage; Obtaining Additional Information About Power - Cisco Unified 7975G Preparing To Install

Providing Power to the Phone

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.

Obtaining Additional Information about Power

For related information about power, refer to the documents shown in
provide information about these topics:
•
•
•
Table 2-3
Document Topics
Cisco Unified IP Phone
Power Injector
PoE Solutions
Cisco Catalyst Switches
Integrated Service Routers
Cisco IOS Software
Cisco Unified IP Phone Administration Guide for Cisco Unified Communications Manager 8.5
2-6
Cisco switches that work with the Cisco Unified IP Phones 7975G, 7971G-GE, 7970G, 7965G, and
7945G
The Cisco IOS releases that support bidirectional power negotiation
Other requirements and restrictions regarding power
Related Documentation for Power
Chapter 2 Preparing to Install the Cisco Unified IP Phone on Your Network
URL
http://www.cisco.com/en/US/products/hw/phones/ps379/prod_installati
on_guides_list.html
http://www.cisco.com/en/US/netsol/
ns340/ns394/ns147/ns412/networking_solutions_package.html
http://www.cisco.com/en/US/products/hw/switches/ps708/tsd_products
_support_series_home.html
http://www.cisco.com/en/US/products/hw/routers/index.html
http://www.cisco.com/en/US/products/sw/iosswrel/products_ios_cisco_
ios_software_category_home.html
Table 2-3. These documents
OL-23092-01