Samsung MM A880 - Manual (Page 109)

Section 2E: Navigating Through Menus 101
Menus
6: Services
1: Account Info
2: Customer Service
3: Dir Assist
InUse Menu
Press the right to display the following options:
1: Speaker On
2: Key Mute/Unmute
3: Contacts
4: Messaging
5: 3-Way Call
6: Call History
7: Voice Memo
8: Tools
9: Phone Info