Google has inked a deal with Sprint Nextel to integrate its VoIP service, Google Voice with subscribers’ mobile phones. Now, Sprint customers will be able to use their existing Sprint mobile number as their Google Voice number and then, have it ring multiple other phones simultaneously.

Calls from Gmail and text messages sent from Google Voice will also display a customer’s Sprint phone number. This will give Sprint customers all the benefits of Google Voice without the need to change or port their number.

On the other hand, Google Voice users can choose to replace their Sprint number with their Google Voice number when placing calls or sending text messages from their Sprint handset. This feature works on all Sprint phones and gives Sprint users all the benefits of Google Voice without the need for an app.

In both cases, Google Voice replaces Sprint voicemail, giving Sprint customers transcribed voicemail messages available online and sent via email and/or text message. International calls made from Google Voice users’ Sprint phones will be connected by Google Voice, and Sprint customers will also have access to the rest of Google Voices’ features like creating personalized voicemail greetings based on who’s calling, call recording, blocking unwanted callers and more.