Google is getting ready to launch a new service, Google Voice, which was built with technology obtained through its 2007 acquisition of Internet telephony company GrandCentral and has been tested by a privileged group of GrandCentral users.

The new Google Voice service will give users a single phone number that can seamlessly route calls to their existing phones or even offer number portability, enabling consumers to move their existing phone numbers to Google’s infrastructure.

Some of the incredible features of this new service include voicemail that can be accessed from any phone or through a browser, with GMail-like archiving features, automatic message transcription that can be forwarded to preferred e-mail account, free SMS delivery and much more.

Google has recently obtained over one million new phone numbers from backbone operator Level 3 therefore Google’s new phone service is expected to be launched for a broader audience soon.