Yealink CP920, User Manual

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User Guide for the CP920 HD IP Conference Phone
72
3.
Click
Confirm
to accept the change.
Note
Block Out
You can block specific numbers (up 10) from being dialed on your phone. When you dial a
block out number on your phone, the dialing will fail and the LCD screen will prompt
"Forbidden Number".
To add a block out number via web user interface:
1.
Click on
Settings
->
Dial Plan
->
Block Out
.
2.
Enter the desired value in the
BlockOut NumberX
field.
3.
Click
Confirm
to add the block out number.
Note
Emergency Number
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 emergency calls on the IP phone
even when the phone keyboard is locked. For more information on phone lock, refer to
Phone
Lock on page 35 .
Note
The default value of minimum and maximum length is 1 and 15 respectively.
Area code is configurable via web user interface only.
Block out number is configurable via web user interface only.
Contact your local phone service provider for available emergency numbers in your area.
The IP phone also supports the emergency dialplan, which allows users to make emergency calls
if the phone is locked or unregistered. For more information, contact your system administrator.