Google Voice integration to "all mobile phones" and allow wireless users to manage multiple numbers without the hassle of additional software -- meaning your RAZR 2 can join the fun. Calls placed to handsets utilizing Abrazo will ring all phones in your Google Voice roster and users can choose which caller ID number to display for outgoing calls. The service will also offer a single Message Waiting Indicator light and leverage GV's low-cost international calling rates. Abrazo Multi-line Service is currently in the trial phase with North American mobile operators. The full press release from Tango is after the break.