01/25/18 23:56 PM  

Troubleshooting: This extension number is reserved for special functions - please try another extension number

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SummaryHow to avoid getting the error message "Sorry this extension number is reserved for special functions - please try another extension number." when adding an extension User or editing a User's extension number.
Details
 

Description

RingCentral currently reserves certain blocks of numbers to prevent accidental dialing of emergency services or other reserved services. These numbers are actively restricted from RingCentral customers to utilize based on the home region of their account and common services. 
 

Problem

When you attempt to use a reserved extension number as an extension, you will get a message saying "Sorry this extension number is reserved for special functions – please try another extension number."
 

Environment

• RingCentral Service Web (Online account) - all browsers
• RingCentral Mobile app - all versions
 

Steps to Reproduce 

 

Step 1: 

 
The following User Roles ARE ALLOWED to Add Users or change a User's Extension NumberThe following Predefined User Roles DO NOT have access to to Add Users or change a User's Extension Number
• Super Admin
• User Admin
• Custom Roles with access to User Management > User
• Billing Admin
• Manager
• Phone System Admin
• Standard
• Standard (International)


Step 2: 

• When assigning an Extension to a User and a reserved extension number is used, you will get an error message saying "Sorry this extension number is reserved for special functions – please try another extension number." For detailed steps, go to Adding User Extensions to your RingCentral Account.

User-added image

• When changing a User's Extension number and a reserved extension number is used, you will get an error message saying "Sorry this extension number is reserved for special functions – please try another extension number."

User-added image
 

Workaround

If you account have phones assigned in domestic locations, avoid using the numbers listed in Table 1, and assign another number from 1 - 9999 that is not on the list.

If your account have phones assigned in an international location (RingCentral Global Office), it is recommended to assign an Extension number with four or more digits such as the range of 1000 - 9999. If you have to assign a 3-digit extension number, avoid using the numbers listed in Table 1 and Table 2.

IMPORTANT: The table below shows the list of 3 digit codes (short codes) that are commonly used around the globe for special services such as police, ambulance and firefighters. These numbers cannot be used as an extension number since they serve a special purpose. If you previously used one of these extensions and deleted it, RingCentral will not be able to reenable its usage.

NOTE: Extension 100 can now be used. Please Contact Support to have the extension number enabled.
 
Table 1. List of Reserved Extension Numbers
All RingCentral Accounts
999Emergency number for United Kingdom.
933Commonly used to get the information that would be delivered to the 911 operator when you call 911.
North America (United States and Canada)
112Forwards the call to 911.
211Commonly used for Community information & Referral services
311Commonly used for Non-emergency police & other governmental services
411Commonly used for Local directory assistance
511Commonly used for Traffic & transportation information
611Commonly used for Repair services

NOTE: RingCentral provisioned phones, RingCentral Desktop app and Mobile app can dial 611 to reach the RingCentral Customer Support line.
711Commonly used for Telecommunications Relay Service
811Commonly used for Business office & auto number feedback
911Commonly used for Emergency service 

The table below shows the list of 3 digit codes (short codes) that are commonly used around the globe for special services such as police, ambulance and firefighters. These numbers cannot be used as an extension number since they serve a special purpose.
 
Table 2. List of Reserved Extension Numbers for RingCentral Global Office
All RingCentral Accounts
999Emergency number for United Kingdom.
933Commonly used to get the information that would be delivered to the 911 operator when you call 911.
Latin America
112Supported in many countries for Tourist support
911
Mexico06X (e.g. 060, 061, 066, etc)
Brazil19X (e.g. 191, 194, 193, etc) 
Argentina10X (e.g. 101, 107, etc) 
Chile13X (e.g. 131, 132, 133, etc) 
Europe
911Typically supported for Tourists
Cross EU11X (e.g. 110, 111, 112, 119, etc.)
United Kingdom99X (e.g. 999, 991, etc)
Ireland99X (e.g. 999, 991, etc) 
100UK reserved extensions
111UK reserved extensions
155UK reserved extensions
Asia Pacific
112Supported in many countries for Tourist support
911
Singapore99X (e.g. 999, 991, 995, etc)
Malaysia
Hong Kong
India10X (e.g. 101, 102, 108, etc.) 
Philippines11X, 8888  (e.g. 117, etc) 
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