Probably an FRS radio inside. Not sure what the regulations are for combining a cell phone and FRS, but you can't mix amateur radios with another service like this. You don't need a special license to operate FRS but the radio itself has to conform to certain requirements, 0.5W, fixed antenna.
'91 Pickup - Imelda / '08 Tacoma TRD - Donna
'09 Kawasaki KLR650
'98 Rhygin Juke SS / '12 Gunnar Rockhound 29 / '16 REEB Dikyelous
"Our task must be to free ourselves from this prison by widening our circle of compassion to embrace all living creatures and the whole of nature in its beauty. Nobody is able to achieve this completely, but the striving for such achievement is in itself a part of the liberation and a foundation for inner security. " --Albert Einstein