Why is my BT Versatility system answering machine not answering calls to DDI numbers?

The system answering machine will only answer calls that are calling the number programmed as the directory number and not numbers programmed as DDI/MSN numbers. Calls to the number programmed as the directory number follow the incoming ringing programme for the line the call is coming in on, the system answering machine will only answer these calls.

  • Calls to numbers programmed as DDI numbers follow the DDI number programming, there is no option for these to be answered by the system answering machine.
  • Calls to DDI numbers can be programmed to be answered by group or extension mailboxes by using the group or extension divert to mailbox feature.

For details on 'To configure ISDN Accesses with a Directory MSN' and also for details on 'Setting up and using ISDN', please see the BT Versatility Owner’s Manual below.

pdf logo   BT Versatility Owners Manual


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NB. There should be no duplication of numbers in the Directory and DDI/MSN programming.  Numbers should only be programmed once, if a number is programmed as a Directory number it must not be programmed in the DDI/MSN field.