VoIP technology has evolved significantly since its inception:
- 1973: Network Voice Protocol (NVP) developed for ARPANET
- 1995: First consumer VoIP software (VocalTec) introduced Late
- 1990s: Development of H.323 and SIP protocols
- 2000s: Widespread adoption by businesses and consumers. Present: Cloud-based VoIP, integration with unified communications, and mobile VoIP applications