Uniden EXI2960 Owner's Manual page 15

If you enter a 3-digit area code number in the
in Caller ID messages. Do not program this option, if your calling area requires 10-digit dialing.
When reviewing Caller ID messages, you will see only the local seven digit number. For calls received
from outside your local area code, you will see a full 10-digit number.
1)When the phone is in the standby mode, press and hold call id. The Caller ID setting screen appears.
2) Press 3 to select ¨
3) Press select.
4) Use the number keys (0 to 9) to enter the 3-digit area code.
5) Press select. A tone sounds and the displayed area code is entered.
6)Press call id to complete the setting. Or return the handset to the base unit to complete the setting.
The handset returns to the standby mode.
When the area code has already been stored in memory, the stored area code will be
displayed. To change it, use the delete and number keys to enter the new area code.
Then press select. A confirmation tone sounds.
To complete the setting, press call id or return the handset to the base unit.
¨ or press twice.
option, your local area code does not appear
If your calling
area requires
10-digit dialing,
do not program
this option.