Cisco Unified Communications Manager (UCM) is an on‑premises call‑control platform that many enterprises use for voice, video, and messaging. For organizations seeking a fully hosted, cloud‑native UCaaS solution, the following 20 platforms provide comparable or enhanced capabilities, ranging from integrated collaboration suites to specialist VoIP providers.
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Comprehensive cloud phone system with SMS, video meetings, team messaging, and robust integrations (Salesforce, Microsoft 365, Google Workspace).
Scalable cloud PBX built on the Zoom platform, offering voice, video, and chat with advanced analytics and global PSTN connectivity.
Integrated voice, video, and collaboration within Microsoft Teams, leveraging Azure Communication Services for enterprise‑grade telephony.
Unified communications suite with voice, video, chat, contact‑center, and analytics, plus AI‑driven call quality monitoring.
Cloud‑based UC platform offering voice, video, messaging, and CRM integrations, plus programmable APIs for custom workflows.
Enterprise UCaaS solution combining voice, video, messaging, and meeting rooms with AI‑powered transcription and analytics.
Hosted version of the popular 3CX PBX, delivering SIP‑based voice, video conferencing, live chat, and CRM integration.
Hybrid UCaaS built on Avaya’s contact‑center expertise, offering voice, video, messaging, and AI‑driven insights.
Fully managed cloud PBX with voice, video, team messaging, and advanced call‑center features, integrated with Microsoft Teams.
AI‑enhanced cloud phone system with real‑time transcription, sentiment analysis, and seamless integration with G Suite and Microsoft 365.
Unified communications suite combining voice, video, chat, and contact‑center tools with robust analytics and omnichannel support.
Cloud PBX with voice, video, team messaging, and easy admin portal; includes SIP trunking and mobile apps.
Hosted UC platform offering voice, video, web conferencing, and a unified web client with AI‑driven call routing.
Cisco’s cloud‑native phone system that integrates with Webex Meetings, Teams, and Cisco’s broader collaboration ecosystem.
Legacy hosted UC platform offering voice, video, messaging, and contact‑center capabilities; still sold under Cisco’s umbrella as a cloud service.
Cloud‑based UC suite delivering voice, video, instant messaging, and presence with strong security and compliance features.
Open‑source collaboration platform with voice/video calling, screen sharing, and extensive customization via plugins and APIs.
Integrated voice and messaging solution within Zoho’s suite, offering call routing, IVR, and AI‑driven analytics.
Cloud contact‑center solution that pairs with RingCentral Office for omnichannel support, AI routing, and workforce management.
Hosted UC platform delivering voice, video, messaging, and contact‑center capabilities with deep Microsoft Teams integration.