Extension Numbering Ranges (Recommended)

W Derek Chappell Jr.

Last Update há 3 meses

Having a consistent numbering scheme for the extensions created within a customer PBX allows for easier turn-up and easier reference points when troubleshooting

For 3 digit Numbering

Number RangeFeature/Function
100-199Extensions
200-299Extensions
300-399Extensions
400-499Call Queues
500-599Call Queues
600-699Conferences
700-799Call Parks
800-899Auto Attendants
900-999Auto Attendants

For 4 digit Numbering

Number RangeFeature/Function
1000-1999Extensions
2000-2999Extensions
3000-3999Extensions
4000-4999Call Queues
5002-5999Call Queues
6000-6999Conferences
700-799Call Parks
8000-8999Auto Attendants
9000-9999Auto Attendants

Un-allowed Extension Numbers

The following extension numbers can not be used and are reserved for pre-built system features. If you must use one of these numbers please contact support and a custom dial plan can be created for a minor project fee.


001-009, 411, 700-799, 911, 933, 988, 5000, 5001

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