From Pulses to Bytes: The Evolution of Alarm Communication | Part 2
![collage of various panels and cellular towers](https://www.rrms.com/wp-content/uploads/2023/09/Alarm-Communication-Cover-Image-copy.jpg)
In part 2 of the From Pulses to Bytes series, Darren Frick, Sr. Systems Engineer on #TeamRapid, shifts his focus to the technologies that held the spotlight from the 1960s to the 2000s. These include Dual-Tone Multi-Frequency (DTMF), Contact ID, SIA, and VoIP, all of which paved the way for automation and reliability.