A line key provides an extension user with one-button access to outside lines. The extension user
just presses a line key to place or answer a call on the line. There is no need to dial codes to
access or intercept outside calls. In addition, a line key provides a Busy Lamp Field (BLF) for the
line to which it is assigned (see the table below).
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Line Key BLF Indications
|
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When the key is:
|
The line is:
|
| Off |
Idle or not installed |
| On (red) |
In use or on Exclusive Hold at a co-worker’s extension |
| On (green) |
In use at your extension |
| Wink On (red) |
On System Hold at a co-worker’s extension |
| Wink On (green) |
On System Hold at your extension |
| Double Wink On (green) |
On Exclusive Hold or recalling your extension |
| Slow Flash (red) |
Ringing into the system |
| Slow Flash (green) |
Ringing or recalling directly to your extension |