Dual rail time and control unit for a duplex t-s-t-digital...

Dual rail time and control unit for a t-s-t-digital...

Dual rail time and control unit for a t-s-t-digital...

Dual rail time control unit for a t-s-t-digital switching...

Dual stage approach for evaluating a received signal in a...

Dual tone receiver

Duplex digital span conversion circuit arrangement

Duplex digital span transmission circuit arrangement

Duplicate mobile device pin detection and elimination

Duplicated home location registers in a mobile radio system

Duplicated network arrays and control facilities for packet...

Duplicated time division switching system

Dust cover

Dynamic allocation of packet data channels

Dynamic allocation of telecommunications resources

Dynamic assignment of subrate voice channels in...

Dynamic bandwidth allocation mechanism between circuit slots...

Dynamic bandwidth allocation to transmit a wireless protocol...

Dynamic binding and bridging in a communication system

Dynamic call vectoring