Lucent Technologies MERLIN Plus Release 2 System Manual page 135

HOW TO USE
5-16 MERLIN Plus System Features
To place an intercom call with one touch:
Touch the Auto Intercom button for the intercom number you want to dial.
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If you hear a short beep, begin speaking or lift your handset. If you hear a
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long beep, wait for someone to answer on the other end.
John 12
If the line is busy or if no one answers:
Touch Speakerphone to cancel the call.
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Speaker-
phone
Speaker-
phone