Emergency Number - Yealink SIP-T20 User Manual

User Guide for the SIP-T20P/SIP-T20 IP Phone
3. Enter the desired line ID in the A ccount field or leave it blank.
For more information on the valid values of A ccount field, refer to
page 45.
4. Click Conf irm to add the block out number.
Not e Block out number is configurable via web user interface only.
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.
Not e
Contact your local phone service provider for available emergency numbers in your
area.
To s pecify emergency numbers via web user interface:
1. Click on F e atures->Phone Lock.
50
Replace Rule on