Dual transfer mode
The Dual Transfer Mode (DTM) is a transmission protocol based on the GSM standard. It supports the simultaneous transmission of voice ( circuit-switched ) and data ( packet-switched ) over the same radio channel ( ARFCN ).
The Dual Transfer Mode (DTM) is a transmission protocol based on the GSM standard. It supports the simultaneous transmission of voice ( circuit-switched ) and data ( packet-switched ) over the same radio channel ( ARFCN ).