Please follow the reserved number schema template below. In cases where extensions overlap features, you may adjust as necessary, except call parks.

Call Parks are static and cannot be used outside of the 700-799/7000-7999 range, user extensions cannot be in this range with our default setup. 

For 3 digit Numbering

Number Range Feature/Function
100-199 Extensions
200-299 Extensions
300-399 Extensions
400-499 Call Queues
500-599 Call Queues
600-610 / 612-699 Conferences
700-799 Call Parks (not for use for any other feature/users)
800-899 Auto Attendants 
900-910 / 912-932 / 934- 987 / 989 - 999 Auto Attendants

For 4 digit Numbering

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 (not for use for any other feature/users)
8000-8999 Auto Attendants
9000-9999 Auto Attendants

Reserved Extensions

Extensions that cannot be created in the system due to default setup:

611 - Contact CallHarbor Support*

911 - Emergency Services

933 - e911 Address Test Call (verify the address provided when 911 is called)

988 - Suicide Prevention Hotline

5000 - Access the Voicemail System (Ext and Pin Required)

5001 - Access your Voicemail box (Pin required)

*If an extension is needed at 611, please contact CallHarbor Support for a workaround.