Samsung SGH-T769NKBTMB - Manual (Page 129)

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Google Talk
Google Talk™ is a free Windows and web-based application for
instant messaging offered by Google. Conversation logs are
automatically saved to a Chats area in your Gmail account. This
allows you to search a chat log and store them in your Gmail
accounts.
This application also allows for video calling to other compatible
devices where the user is both logged in to gmail and using this
same application.
Note: Before using this application, you must first have an active Gmail
account available and be currently logged in.
1. From the Home screen, tap ➔ (Talk).
Note: If you are not already logged into Google, refer to the instructions for
signing in on page 123.
2. Begin using Google Talk.
Note: The Network confirms your login and processes. This could take up to
5 minutes to complete.