Yealink SIP-T23P User Manual page 74

User Guide for the SIP-T23/T23P/T23G IP Phone
For more information on the valid values for the Account field, refer to
on page 59.
4. Click Confirm to add the block out number.
Note
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 different emergency
numbers for different emergency services.
You can specify the emergency telephone number on the IP phone for contacting the
emergency services in an emergency situation.
Note
Contact your local phone service provider for available emergency numbers in your
area.
To specify emergency numbers via web user interface:
1. Click on Features->Phone Lock.
2. Enter the emergency number in the Emergency field.
64
Replace Rule