Sony PP-A2780 Operating Instructions Manual page 20

Step 5: Entering the area code (continued)
To change the local area code
1
Perform steps 1 to 3 on page 19.
The current local area code appears on the display.
2
Press (ERASE) to erase the current local area code.
3
Enter a new local area code using the dialing keys.
4
Press (PGM).
You hear a long confirmation beep.
To erase the local area code
You can erase the local area code. Perform steps 1 and 2 avobe, then
press (PGM). The local area code will be erased, and you hear a long
confirmation beep.
20 US
Getting Started