Google Voice 'light' to work with existing cell phone numbers

Until now, to use the Internet search giant's suite of telephone services, you needed to choose a special Google Voice phone number. The change is short of true number "portability," however, because not all Google Voice services — recording a phone call, for example — will be available via an existing cell phone number.

The free service for existing mobile numbers will still include online voice mail, automatic text transcriptions of voice mail and custom voice mail greetings. Mountain View-based Google says its "lighter" version of voice is meant to appeal to people who don't want to have to distribute yet another telephone number to their family, friends and colleagues.

"We realize there is always going to be a subset of our users who would want to keep their number, even though it means fewer features," said Vincent Paquet, senior product manager for Google Voice.

To access some features — including call screening, converting a cell phone text message to an e-mail or recording phone calls — users will need to continue using a special Voice number. But starting today, both existing and new Voice users will have the option of having the service based on an existing cell phone number, or the specially designated number.