Introduction
We’re all about helping you customize your Pilot phone system, but there are some numbers that just can’t be changed.
The table below shows which digits are off-limits and should not be assigned within a domain (sorry—even if it is your lucky number!).
Numbers reserved for system functions
Restricted Numbering |
0-99 |
Reserved for internal use |
611 |
Customer Service |
911 |
Emergency |
933 |
Emergency Testing |
988 |
National Suicide Hotline |
600-699 |
Reserved for 611 feature |
700-799 |
Reserved for Call Parking Queues |
900-999 |
Reserved for 911, 933, and 988 features |
9900 |
Unregistered Login to Voicemail - Prompts for extension and password |
9901 |
Registered Login to Voicemail - Prompts for password only |
9902 |
Hot Desking Sign in |
7000-7999 |
Reserved for 7+ext transfer to voicemail feature |
9900-9999 |
Reserved for system features |
Available extensions
The following numbers are all fair game and can be assigned within your domain.
Best Practice Dial Plan |
100-599 |
User Extensions |
700-719 |
Call Parks - No Ringback |
720-799 |
Call Parks with Ringback |
800-899 |
User Extensions |
1000-4999 |
User Extensions |
5003-6999 |
User Extensions |
8000-8999 |
User Extensions |
9000-9099 |
Auto Attendants |
9100-9199 |
Call Queues (Excluding Call Parks) |
9200-9899 |
Special Extensions (ie Forwarding Users, Call Routing Users, Analog/Paging Systems) |
Need help assigning numbers? Reach out to Pilot Support.
