Radisys ® Corporation, a global leader of open telecom solutions, today announced that Unisys, a global technology solutions provider, has selected Radisys’ Engage Media Server to enhance its ...

and dual-tone multi-frequency (DTMF) signal detection. Unisys chose Radisys’ Engage Media Server for its ability to deliver robust performance in virtualized and cloud-based deployments.

DTMF Decoder is also used for receiving data transmissions over the air in amateur radio frequency bands. • The signal is encoded as a pair of sinusoidal (sine wave) tones from the table below which ...