Nice project ! We did a lot of DTMF decoding “in the old ages”, with the 8870 chip (and others) with a C-64 and also via the PC joystick port and the Centronics parallel printer interface.

Between “Me Porto Bonito” and “DtMF,” Bad Bunny’s best on the chart had been “Monaco,” which debuted and peaked at No. 2 on the Oct. 28, 2023-dated ranking.

The last blog entry covered DTMF relay. This blog entry will focus on Cisco IP Phone and Cisco SIP Trunk DTMF relay support. Cisco’s first generation of IP phones do not support RFC2833 DTMF-Relay.

Bad Bunny‘s “DtMF” hits a 20th week at No. 1 on Billboard’s Hot Latin Songs chart (dated June 7). The track’s extended dominance marks a milestone for Benito, becoming his third song to ...

Using dual-tone multi-frequency (DTMF) technology provided “touch-tone” service that would become the worldwide standard for telecommunication signaling. ... The # and * keys were added to possibly be ...