Northern Modular Telephone - Manual (Page 29)

• • • • 26 • • • •
Special features
Centrex/Exchange Line Switchhook Flash
Centrex/Exchange Switchhook Flash allows you to signal the Central Office/Exchange (CO) during an
established call to use a Centrex service such as call transfer or three-way calling.
To use Centrex/Exchange line Switchhook Flash:
1. Press or enter the Switchhook Flash FFC. You hear special dial tone.
2. Enter the codes for your custom Centrex feature.
M1 Display/MSL-100 Inspect
When you are on an active call, you can identify a second incoming caller with the Display feature.
This feature differentiates between external and internal calls. For internal calls, it also displays the
caller’s identity. Your telephone must have a Display Module Option to use this feature.
To view the name of a second caller while on a call in progress:
1.
While on a call, you hear the tone of the second call.
2. Press œ. Press ∫
Inspect . .
on an MSL-100.
3. Press the DN key beside the flashing º. The caller's name is displayed in the Display Module.
Note: Displaying the second caller's name does not interfere with the current call in progress.
Trunk Switchhook Flash