Samsung Android 2.3 - Manual (Page 197)

Google Talk 197
AUG-2.3-103 Android User’s Guide
Sign out of Google Talk
You can sign out of Google Talk—for example, if you want to switch the focus of all
chats and invitations to Google Talk on a computer. Signing out can also extend your
battery life.
S On your Friends list, press Menu and touch Sign out.
You no longer receive chat notifications or see others’ Google Talk status in other
applications, such as Gmail.