Avaya Cloud Office provides a cloud‑based phone system, video meetings, messaging, and collaboration tools. Below are 20 leading UCaaS platforms that can serve as alternatives, offering comparable voice, video, chat, and integration capabilities.
Get targeted exposure with custom position pinning and highlighted placement.
Comprehensive UCaaS suite with phone, video, team messaging, and robust integrations for CRM, Microsoft 365, and Google Workspace.
Cloud phone system built into Zoom’s video platform, offering call routing, voicemail, and global PSTN connectivity.
Integrated voice, video, and collaboration within Microsoft Teams, leveraging Microsoft 365 licensing and Direct Routing.
Enterprise‑grade cloud calling solution with AI‑enhanced meeting features, secure messaging, and extensive device support.
Unified communications platform combining voice, video, chat, contact center, and analytics in a single cloud service.
AI‑powered UCaaS with voice, video, messaging, and real‑time transcription, plus seamless integration with G Suite and Office 365.
Cloud communications suite offering voice, video, SMS, and API‑driven integrations for custom workflows.
All‑in‑one UCaaS platform delivering voice, video, messaging, and contact‑center capabilities with analytics dashboards.
Scalable cloud PBX with voice, video, team collaboration, and integration with Microsoft Teams and Salesforce.
Software‑based IP PBX that can be hosted in the cloud, offering voice, video conferencing, chat, and CRM integrations.
Unified communications platform with cloud phone, video meetings, and team messaging, plus a marketplace of add‑ons.
Small‑business focused UCaaS delivering VoIP phone, video conferencing, and mobile app with easy setup.
Business communication suite combining VoIP phone, video meetings, team chat, and robust analytics.
Cloud contact‑center platform that also provides voice, video, chat, and AI‑driven engagement tools.
Team collaboration hub integrated with RingCentral’s voice and video services, offering chat, file sharing, and task management.
Cloud‑based call center software with VoIP phone, call routing, and integration with Freshdesk CRM.
Modern cloud phone system designed for sales and support teams, featuring call routing, analytics, and CRM integrations.
Enterprise contact‑center platform offering voice, video, chat, and AI‑powered automation with extensive integration options.
Zoom’s collaboration suite that adds persistent chat, file sharing, and integrated Zoom Phone for a unified experience.
Carrier‑grade UCaaS platform delivering voice, video, messaging, and advanced service provisioning for service providers.