4.2 Feature Number Table
144 User Manual
Feature (While busy, DND or call tone is heard) Default
1.2.4 When the Dialed Line is Busy or There is No Answer
Call Waiting 1
DND Override
Executive Busy Override 3
Message Waiting 4
Call Monitor 5
Automatic Callback Busy 6
1.2.5 Alternate Calling—Ring/Voice
Feature (While dialing or talking)
Fixed
Number
1.4.5 Multiple Party Conversation
Conference 3
1.9.1 Doorphone/Door Opener
From any extension while talking to the doorphone 5
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