WebWorldMaker is a service that helps businesses send text messages, WhatsApp broadcasts, and automate their communications globally. We ensure all messages deliver in under 2 seconds. We also build custom web applications, mobile apps, and optimize search engine rankings.
Definition
DTMF is defined as: Dual-Tone Multi-Frequency. The tone signals generated when a caller presses phone keypad keys, used by IVR systems to capture menu selections and route calls.