Clean The Phone Screen; Differences Between Phone Calls And Lines; Power Requirements; Energy Savings - Cisco 7811 User Manual

Your Phone
At the top of the screen is the header row. The header row displays the phone number, current date and time,
as well a number of icons. The icons display when features are active.
The middle of the phone screen displays the information associated with the line and feature buttons on the
phone.
The bottom row of the screen is the softkey labels. Each label indicates the action for the softkey button below
the screen.

Clean the Phone Screen

Caution Do not use any liquids or powders on the phone because they can contaminate phone components and
cause failures.
Procedure
Wipe the screen with a soft, dry cloth.

Differences Between Phone Calls and Lines

We use the terms lines and calls in very specific ways to explain how to use your phone. Here is an explanation
of the differences.
• Lines—Each line corresponds to a directory number or intercom number that others can use to call you.
• Calls—Each line can support multiple calls. By default, your phone supports four connected calls per
Here is an example: If you have two lines and each line supports four calls, then you could have up to eight
connected calls at one time. Only one of those calls is active and the other seven are held calls.

Power Requirements

The following Cisco-approved power adaptors must be used with the Cisco IP Phone 7800 Series:
• Phihong adapter (PSC18U-480); Rating: 48 VDC 0.38A
• Delta adapter (EADP-18VB B); Rating: 48 VDC 0.375A

Energy Savings

Your administrator can reduce the amount of power used by the phone screen when you're not using your
phone. There are two levels of energy-saving that can be set up:
To see how many lines you have, look at the right side of your phone screen. You have as many lines
as you have directory numbers and phone line icons.
line, but your administrator can adjust this number according to your needs.
Only one call can be active at any time; other calls are automatically placed on hold.
Differences Between Phone Calls and Lines
Cisco IP Phone 7800 Series User Guide
11