3CX A business phone system and contact center with built-in AI, priced per system. Reviews None yet Write one for 3CX Lowest paid plan $600 3CX Basic, as of November 14, 2026 Free plan YesFree trial YesPublic API YesRuns on Android, iOS, Web, Windows Main features AI receptionist AI transcription AI analytics 8x8 Contact center, global telecommunications and video messaging on one platform. Reviews None yet Write one for 8x8 Lowest paid plan Not confirmed Free plan Not confirmed Free trial Not confirmed Public API Not confirmed Runs on Microsoft Teams Main features Omnichannel routing Agent assist Aircall An AI-powered platform bringing together voice agents, automated workflows and real-time coaching. Reviews None yet Write one for Aircall Lowest paid plan A$45 per license per month Essentials, as of November 13, 2026 Free plan Not confirmed Free trial Not confirmed Public API YesRuns on Web, Android, iOS CallHippo An AI-powered business communication platform for calling, messaging and automation. Reviews None yet Write one for CallHippo Lowest paid plan A$29 per user per month Starter, as of November 14, 2026 Free plan YesFree trial Not confirmed Public API YesCloudTalk Every call answered, 24/7. By your team, or by AI. Reviews None yet Write one for CloudTalk Lowest paid plan Not confirmed Free plan Not confirmed Free trial 14 daysPublic API YesRuns on Desktop and mobile Dialpad The AI platform for customer experience connecting conversations, customer context, and workflows. Reviews None yet Write one for Dialpad Lowest paid plan Not confirmed Free plan Not confirmed Free trial Not confirmed Public API YesRuns on iOS, Android Main features Grasshopper A virtual phone system that separates business calls, messages, and contacts from personal ones. Reviews None yet Write one for Grasshopper Lowest paid plan Not confirmed Free plan Not confirmed Free trial Not confirmed Public API Not confirmed Runs on iOS, Android, Mac, Windows Main features JustCall An AI-powered phone and SMS platform built for sales and support teams. Reviews None yet Write one for JustCall Lowest paid plan A$35 per user per month, billed annually Team, as of November 13, 2026 Free plan Not confirmed Free trial 14 daysPublic API YesNextiva Business phone, contact center, AI receptionist, and unified CX in one. Reviews None yet Write one for Nextiva Lowest paid plan $15 per user per month NEXT Core, as of November 13, 2026 Free plan Not confirmed Free trial Not confirmed Public API YesRuns on Not confirmed NUACOM Cloud business phone system and call center software for sales and support teams. Reviews None yet Write one for NUACOM Lowest paid plan $19 Unlimited, as of November 14, 2026 Free plan Not confirmed Free trial Not confirmed Public API YesRuns on Desktop, Mobile Ooma Office Ooma's cloud phone system with VoIP calling, UC features, collaboration tools, and scalable pricing. Reviews None yet Write one for Ooma Office Lowest paid plan $19.95 per user account per month Essentials, as of November 14, 2026 Free plan Not confirmed Free trial Not confirmed Public API Not confirmed Runs on Windows, Mac, iOS, Android Main features Quo Quo brings calls, texts and contacts together in one AI-powered shared space. Reviews None yet Write one for Quo Lowest paid plan $15 per user per month, billed annually Starter, as of November 13, 2026 Free plan Not confirmed Free trial Not confirmed Public API YesRuns on iOS, Android, macOS, Windows, Web RingCentral Video meetings made easy with AI-powered transcripts, notes, and recaps. Reviews None yet Write one for RingCentral Lowest paid plan Not confirmed Free plan YesFree trial 14 daysPublic API YesTalkdesk Talkdesk uses AI and real-time data to automate customer journeys, reduce costs, and improve outcomes. Reviews None yet Write one for Talkdesk Lowest paid plan Not confirmed Free plan Not confirmed Free trial Not confirmed Public API Not confirmed Runs on Not confirmed Main features Vonage Business Communications Unified communications for customer experience and team collaboration from anywhere. Reviews None yet Write one for Vonage Business Communications Lowest paid plan Not confirmed Free plan Not confirmed Free trial Not confirmed Public API Not confirmed Runs on iOS, Android, Desktop Main features