VoIP continues its growth trajectory, serving both businesses and individuals for internet-based calls and messaging. Predictions for the next decade include 5G integration, AI-driven enhancements, IoT synergy, and mobile VoIP expansion. VoIP adoption will increase globally, cybersecurity investments will rise, and it will be integral to customer-centric strategies. Ultimately, VoIP may replace PSTN, undergo infrastructure improvements, and remain promising with 5G and AI advancements.