What is DTMF for Handheld Radios? Full Explained!
By: Jeremy NeisserDTMF stands for Dual Tone Multi-Frequency. It’s a technology that is used in many countries by many companies to send data over the phone lines. Usually, it is associated with automated telephone systems, which can be anything from an Interactive Voice Response System (press 1 for …) to a car dealership or bank account … Read more