Overview
We highly recommend utilising an extension numbering schema in your organisation. Plan your extensions before provisioning users. With a comprehensive plan that includes extension length, leading digits, and which extensions to avoid, new users can then be efficiently added for years to come. Consistency is key.
3-Digit
Number Range | Feature/Function |
|---|---|
x11 | Avoid This Format |
100-199 | Extensions |
200-299 | Extensions |
300-399 | Extensions |
400-499 | Call Queues |
500-599 | Call Queues |
600-699 | Conferences |
700-799 | Call Parks |
800-899 | Auto Attendants |
900-999 | Auto Attendants |
4-Digit
Extensions 5000 & 5001 are system reserved for access to voicemail.
Number Range | Feature/Function |
|---|---|
1000-1999 | Extensions |
2000-2999 | Extensions |
3000-3999 | Extensions |
4000-4999 | Call Queues |
5002-5999 | Call Queues |
6000-6999 | Conferences |
7000-7999 | Call Parks |
8000-8999 | Auto Attendants |
9000-9999 | Auto Attendants |