Nortel Networks M3901 User Manual

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1. Press the 

 (DN) Key.

Lift the 

. The Line (DN) Key is 

automatically selected.

2.

 the telephone number.

Use the 

 to raise or lower the volume on the ringer or handset.

While the telephone is ringing, press 
the right side of the 

 

to raise the ringer volume or press 

the left side of the 

 

to lower the ringer volume.

With sound coming from the handset, 
press the right side of the 

 

to raise the handset 

volume or press the left side of the 

 to lower the 

handset volume. 

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1. Press the 

 Key.

2. Press the 

 Key 

assigned to the feature you want to 
use.

Line

Feature

Fx