BusinessPhone Communication Platform 5.1
Commands > Commands 5000...5999

## 5602
Alter an extension directory number

With this command it is possible to change an extension’s directory number.

If one wishes to change the number to a new number, that is in conflict with the old number, this cannot be executed directly. In such a case first replace the number with a random free number and then replace this number with the desired number.

However, references to previous numbers will remain. The references are to be deleted or replaced by the new number. See the description of command group 56 where the commands that refer to directory numbers are listed.

If no number is indicated, the present directory number is deleted for this extension and the extension no longer has a number. The previous number is now vacant, and a call towards this number encounters a vacant tone from the exchange. However, the telephone may still be used for outgoing calls.

Minimum required authority level from telephone: No

Accessible via BMS: Yes

Revision: C © Ericsson Enterprise 2003