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M3901 Quick Reference Guide The M3901 entry telephone features are presented below. Information on how to use the features begins on page two. M3901 features • One Line Key (Main Directory Number (DN)) • Five Programmable Features • Four Fixed Keys: —...
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M3901 Quick Reference Guide Fixed Keys Line Key: The (DN) Key is used for incoming and outgoing calls. Lift Line the handset to answer calls or to make an outgoing call. Feature Key: To use a feature, press the Key followed by a dial pad Feature number key to activate a feature.
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M3901 Quick Reference Guide Status of Message and Call Status Indicator LED On (steady light) A message is waiting Wink (slow flash) An incoming call is ringing Flash A call is on hold No message waiting, no call on hold, and...
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Key followed by the dial pad number key assigned on the Feature Feature Card for Call Transfer. Replace the handset to transfer the call. Note: On the Meridian SL-100, if you press the Key followed by Feature the dial pad number key assigned on the Feature Card for the Call Transfer fea- ture again, you join the two parties.