5.3.1 Feature Number Table
(While busy, DND or call tone is heard/after dialling)
1.2.4 When the Dialled Line is Busy or There is No Answer
Left an Indication (Message Waiting)
Callback on an ISDN Line (Completion of Calls to Busy Subscriber [CCBS])
1.2.6 Alternating the Calling Method (Alternate Calling-Ring/Voice)
1.4.5 Multiple Party Conversation
Adding Other Parties during a Conversation (Conference)
1.11.1 If a Doorphone/Door Opener is Connected
From any extension while talking to the doorphone
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User Manual
Feature
Feature
(While dialling or talking)
Setting
Default
1
3
4
5
6
Fixed Number
3
5