Customizing  Your  Phone 
83 
For more information on the valid values for the Account field, refer to Replace Rule 
on page 78. 
 
4.  Click Confirm to add the block out number. 
Note 
Public telephone networks in countries around the world have a single emergency 
telephone number (emergency services number), that allows a caller to contact local 
emergency services for assistance when necessary. The emergency telephone number 
may differ from country to country. It is typically a three-digit number so that it can be 
easily remembered and dialed quickly. Some countries have a different emergency 
number for each of the different emergency services. 
You can specify the emergency telephone numbers on the IP phone for contacting the 
emergency services in an emergency situation. You can dial these numbers when the 
phone is locked. For more information on phone lock, refer to Phone Lock on page 40. 
Note 
To specify emergency numbers via web user interface: 
1.  Click on Features->Phone Lock. 
2.  Enter the emergency number in the Emergency field.   
Contact your local phone service provider for available emergency numbers in your 
area. 
 
Block out number is configurable via web user interface only.