Ways To Provide Power To Your Phone; Phone Behavior During Times Of Network Congestion; Ul Warning; Energystar - Cisco 7800 Series User Manual

Ways to Provide Power to Your Phone

Caution
Ways to Provide Power to Your Phone
You can provide power to your phone in one of these ways:
• Use the power adapter that comes with your phone.
• If your network supports Power over Ethernet (PoE), you can plug your phone into the network. Plug
If you are not sure whether your network supports PoE, check with your administrator.

Phone Behavior During Times of Network Congestion

Anything that degrades network performance can affect phone audio and, in some cases, can cause a call to
drop. Sources of network degradation can include, but are not limited to, the following activities:
• Administrative tasks, such as an internal port scan or security scan.
• Attacks that occur on your network, such as a Denial of Service attack.

UL Warning

The LAN/Ethernet cable or other cables attached to the device should not be extended outside of the building.

EnergyStar

The following phones have EnergyStar certification:
• Cisco IP Phone 7811
• Cisco IP Phone 7841
Cisco IP Phone 7800 Series Multiplatform Phones User Guide
122
In European Union countries, use only external speakers, microphones, and headsets that are fully
compliant with the EMC Directive [89/336/EC].
an Ethernet cable into the Ethernet phone port and into the network.
Product Safety and Security