Symptoms
-
VIP Implementation - Extension Schemes
Procedure
IMPORTANT: Customers usually have an extension scheme in place. When building out a domain, we should strive to stick with the original scheme as much as possible.
Use
When creating a new domain, we should use the following extension schemes for users:
- 100-999
- 1000-8999
- 10000-199999
- 100000-199999
Don't Use
NOTE: x11 numbers are set to only show the outbound caller ID on X11 numbers. However, they must also display the outbound CID and PSAP or location information.
These extension numbers should not be used for user extensions:
- 111
- 211
- 311
- 411
- 511
- 611
- 711
- 811
- 833
- 911
- 933
- 999
- 5000 & 5001
- 9000-9999
When building call flows, use the following guidelines:
| Call Queues, Auto Attendants, and Conference lines | Extensions 8500-8999 |
| Call Parks | Extensions 9000-9999 |
| Paging units (Snom, Cyberdata) | Extensions 7777 & 8888 are the most common |
IMPORTANT: When adding devices, put them in one server for the entire account: USW, USC, or USE.
Choose the closest server to the Main location if there are multiple locations. Geo IP routing will automatically go into place when calls are placed. Keeping devices all tied to the same server is important to make sure all features are working across the account.
The system in the backend will auto-balance calls, features, and presence without the need to assign servers to devices.
Escalation Information
Escalation Information: SD1
If you need additional assistance, contact Crexendo Support at 855-211-2255 or email us at support@crexendo.com
Change Log
| Date | Description |
|---|---|
| May 12, 2026 | Article migrated and revamped |