A feature found on cellular telephones permitting the user (when roaming away from home) to select either the "A" (non-wireline) carrier or the "B" (wireline) carrier. (Cingular)
Handsets | Smartphones | Camera phones
BlackBerry | Nokia | Sony Ericsson | Motorola | Sanyo | Samsung | BenQ | Kyocera Wireless | LG | NTT DoCoMo | UT Starcom | HTC