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Grandstream CloudUCM review

#20 of 28 in Unified Communications as a Service

A cloud communications suite for small teams needing PBX, chat, and collaboration.

7.4/10Editor score
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Grandstream CloudUCM7.4 Visit Grandstream

Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026

Grandstream CloudUCM combines a cloud-hosted PBX with business calling, audio and video meetings, instant messaging, group chats, and file sharing. It is aimed at small and medium businesses, with positioning that also covers retail, hospitality, and residential deployments. SIP endpoint support and Grandstream’s Wave clients extend the service across web, Windows, macOS, iOS, Android, and Chrome extension environments. Administrators provision deployments through the Grandstream Device Management System, while an HTTPS API and third-party integrations support broader communications workflows.

The paid plans scale by extensions, concurrent audio/video calls, storage, and recording. Startup supports up to 10 extensions, four concurrent calls, 1 GB of cloud storage, and a 30-day trial. SOHO raises capacity to 20 extensions and eight concurrent calls, with recording; Plus supports 50 extensions, 16 concurrent calls, and 2 GB; Pro supports 100, 32, and 4 GB; and Business supports 200, 64, and 10 GB. Subscriptions are annual and purchased through resellers, so plan selection primarily reflects capacity and feature requirements.

CloudUCM fits teams that want telephony and collaboration in one cloud deployment. Integrations include WhatsApp, Telegram, Microsoft Teams, Microsoft Office 365, Google Drive, CRM platforms, PMS platforms, and ERP platforms. Scheduled and recurring meetings, meeting recording on applicable plans, messaging, file sharing, and call-management features give it a broad communications scope. The main constraint is meeting size: the listed limit is four participants, making it unsuitable for organizations that need larger group meetings. Teams also receive support through email and documentation, with two-factor security listed.

Grandstream CloudUCM pros and cons

  • Where it wins
    • Cloud PBX includes routing, IVR, queues, voicemail, and business calling.
    • Wave clients span web, Windows, macOS, iOS, Android, and Chrome extension.
    • Integrates with Teams, Office 365, Google Drive, CRM, PMS, and ERP platforms.
  • Where it doesn't
    • Meetings support up to four participants.
    • There is no free plan.
    • Subscriptions are annual and purchased through resellers.

Grandstream CloudUCM fact sheet, pricing and score →

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