Set options for dialing extensions
1.
From the home screen, press the key.
2.
Press the
key > Options > Smart Dialing.
3.
In the Number field, type the main phone number for an organization.
4.
In the Wait For field, set how long your BlackBerry smartphone waits before dialing an extension.
5.
In the Extension Length field, set the default length for extensions.
6.
Press the
key > Save.