Take the Google Phone and go to the Google Voice website buy entering www.google.com/voice and sign in using a Google account. Without a Google account the site will prompt to create one. At this time users will be prompted to choose whether they want a new Google Voice number or to enter an existing number. Choose the option for a new number. Search for the new Google number in the menu and once done click Continue. Choose a Google Voice PIN to use to retrieve messages and access Google Voice settings from any phone. Enter a forwarding phone number if desired and select a type from the Phone type drop-down menu. Verify the phone. Then continue with the rest of the Google Voice website instructions. 

To configure the Email app on Google Phone for access to Gmail, go to Gmail and Enable IMAP in the Gmail settings. On the Google phone, press Home, then open the Email application. On the Your Accounts page, select Next to get started with setup. Enter the full Gmail address and password, then select Next. On the next screen, give the account a nickname and choose the name to display on the outgoing messages from the Google Phone. Tap Done. And it is done. Verify the settings from the Inbox view by tapping Menu and then Account Settings. Incoming Settings should read, IMAP server is imap.gmail.com, Port 993, Security type is SSL always. The Outgoing Settings should say,  SMTP server is smtp.gmail.com, Port 465, Security type is SSL always. And it is done, the Google phone is set up with Gmail. 

Sure, when it comes to Google Phones, administrators can manage their users Google Phones and Android devices with a set of mobile device management policies designed to let users access their data while keeping organizational information secure. These policies include the ability remotely wipe data from lost or stolen devices, require a device password, set password strength requirements, and more.

There is a Talk app that comes pre-installed on most Google Phones and Android devices. It is automatically synced to the account when users sign during the set up of the Google Phone or device. Just open the Talk app and start chatting with contacts right on the Google Phone.

Sipdroid allows Google Phone users to choose where they will use VoIP, on WLANs only, on 3G, or EDGE networks. If a Google Phone is going to use VoIP services outside private wireless networks, it is the users responsibility to check the contractual terms with the mobile operator. Simply download the Sipdroid app to the Google Phone via Google App Market and set up the app by visiting www.sipdroid.org for details.