Samsung A580 - Manual (Page 84)

66 Section 2C: Setting Your Phone’s Security
Lock Services
This setting allows you to lock voice call functions and
Sprint PCS Vision/Sprint Power Vision services. When you
enable Lock Services, you will be unable to make new calls
(excluding emergency numbers) or to access the Vision
services until the lock has been disabled in the Security menu.
Locking Voice Services
1. Select Menu > Settings > Security.
2. Enter your lock code. (The Security menu is displayed.)
3. Select Lock Services and press .
4. Select Voice and press .
5. Select Lock and press .
Locking Sprint PCS Vision
1. Select Menu > Settings > Security.
2. Enter your lock code. (The Security menu is displayed.)
3. Select Lock Services and press .
4. Select PCS Vision and press .
5. Select Lock and press .