46 Model 6753i IP Phone User Guide 
Line Keys and Programmable Keys
Line Keys and Programmable Keys
This section describes the Multiple Line/Call Appearance Keys (L1, L2, and L3) and the 
customizable programmable keys located at the top left on the phone.
Multiple Line and Call Appearance Keys
The 6753i has 3 hard line/call appearance keys each with a corresponding status light. 
These line/call appearance buttons and lights can represent physical lines, calls for your 
extension or calls from a group that your extension is part of. By pressing a line/call appearance 
button, you connect to the line or a call it represents. The line/call appearance light indicates the 
status of that line or call. When the phone is taken off-hook, the phone automatically selects a 
line for you.
When you have more than one call, you can use the left and right navigation buttons (3 and 4) 
to scroll left and right to the different call information. Icons 3 and 4 appear if there is call 
information either left, right or both sides of the current information you are viewing.
The display shows which line the call information is referring to (L1, L2, L3, etc.), the Caller ID 
information (name and number, if available), the call status (Connected, Ring, Hold, etc.) and 
the timer specific to that call.
Line/Call Appearance 
Light Behavior
Line/Call 
Appearance Status
Off Idle line or no call 
activity
Light flashes quickly Ringing
Light is solid Connected
Light flashes slowly Hold
Multiple Line/
Call Appearance
Keys
Programmable Keys