The Best Unified Communications as a Service in 2026
We researched Unified Communications as a Service products using vendors’ official websites, including pricing pages, plan tables and product documentation. Rankings focus on the category’s core job, value for money and verified features, helping teams compare cloud platforms for business calling, meetings and messaging.
Our top picks
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Top ranked
RingCentral RingEX#1 of 289.3/10A broad cloud communications suite combining calling, messaging, meetings, fax, and AI features.
14-day trial
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Runner-up
3CX#2 of 289.2/10A feature-rich phone system with flexible deployment and licensing based on simultaneous calls.
Free plan
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Top-ranked free plan
Microsoft Teams#9 of 288.5/10A broad collaboration suite with cloud calling options for Microsoft 365 environments.
Free plan
Advertiser disclosure: iTechGuides is reader-supported. Vendors can pay for top positions in our rankings and for a place on other products' pages, and we may earn a commission when you click some links. Bought places stand at the number bought; this page and our disclosure say so. Paying vendors may get a fuller, more detailed review from our editors, and that review can change their score. How we rank.
The full ranking 28 tools, best first
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Best forBusinesses needing a broad, multi-location UCaaS suite
A broad cloud communications suite combining calling, messaging, meetings, fax, and AI features.
9.3/10★★★★★Visit RingCentral -
Best forTeams wanting flexible business telephony
A feature-rich phone system with flexible deployment and licensing based on simultaneous calls.
9.2/10★★★★★Visit 3CX -
Best forOrganizations needing integrations and AI tools
A broad cloud communications bundle with AI tools and 300+ integrations.
9.1/10★★★★★Visit Avaya -
Best forTeams needing configurable calling plus collaboration
Configurable cloud communications with calling, collaboration, analytics, and contact-center tiers.
9.0/10★★★★☆Visit GoTo Connect -
Best forOrganizations needing calling and collaboration
Calling, messaging, video, and contact-center tools span cloud, hybrid, and on-premises options.
- Video meetings
- Team messaging
8.9/10★★★★☆Contact Sangoma -
Best forTeams wanting business calling with large video meetings
Business calling and messaging with video meetings for up to 200 participants.
8.8/10★★★★☆Visit Vonage -
Best forUK businesses seeking affordable cloud communications
A tiered BT cloud phone service with routing, conferencing and Webex collaboration.
8.7/10★★★★☆Visit BT Cloud Voice -
Best forTeams wanting integrated calling and 3,000 listed
A paid UC suite combining business calling, messaging, video, analytics, and AI.
8.6/10★★★★☆Try net2phone UNITE -
Best forMicrosoft 365 users adding calling to collaboration
A broad collaboration suite with cloud calling options for Microsoft 365 environments.
8.5/10★★★★☆Try Microsoft Teams -
Best forBusinesses wanting business calling and analytics
A cloud phone and communications service with pricing from $15 per user monthly.
8.4/10★★★★☆Visit Nextiva -
Best forTeams prioritizing AI-assisted calls and compliance
A broad cloud communications suite with AI call notes, routing, and virtual numbers.
8.3/10★★★★☆Visit Dialpad -
Best forOrganizations needing a feature-rich business phone suite
A broad cloud phone suite with calling, messaging, meetings, and AI recaps.
8.2/10★★★★☆Visit Intermedia -
Best forBudget-conscious teams needing cloud phone features
A cost-conscious cloud PBX centered on routing, attendants, queues, and voicemail.
8.1/10★★★★☆Visit Broadvoice -
Best forTeams needing advanced routing and deployment choice
Advanced calling and contact-center tools, with cloud or self-hosted deployment.
8.0/10★★★★☆Visit Wildix -
Best forTeams needing contact-center features in a UCaaS suite
A UCaaS suite that adds detailed routing and contact-center controls to everyday communications.
7.9/10★★★★☆Visit PanTerra -
Best forEuropean teams seeking low-cost hosted PBX calling
A hosted PBX with flexible call handling and a higher tier for AI and meetings.
7.8/10★★★★☆Visit NFON Cloudya -
Best forEuropean small businesses needing affordable cloud telephony
Affordable cloud telephony with broad routing features and business-app integrations.
7.7/10★★★★☆Visit Placetel -
Best forSmall businesses needing a virtual receptionist
A business phone system with receptionist tools, call routing, fax and conferencing.
7.6/10★★★★☆Visit Ooma Office -
Best forTeams wanting cloud PBX with AI call handling
Cloud PBX with multilingual IVR, call routing, AI handling and business integrations.
7.5/10★★★★☆Visit Yeastar -
Best forSmall teams seeking cloud PBX with meetings and chat
A cloud communications suite for small teams needing PBX, chat, and collaboration.
- Business phone
- Video meetings
- Team messaging
7.4/10★★★★☆Visit Grandstream -
Best forBusinesses needing call-center controls and AI options
A unified communications suite with CRM logging, call-center controls and optional AI agents.
- Business phone
- Video meetings
- Team messaging
7.3/10★★★★☆Visit BoomTalk -
Best forOrganizations needing Teams or Webex integration
A cloud phone system with routing, receptionist tools and links to Teams, Webex and CRM systems.
7.2/10★★★★☆Contact Evolve IP -
Best forTeams seeking cloud calling and collaboration in one service
A broad cloud PBX and collaboration bundle, with pricing handled through sales.
- Video meetings
- Team messaging
7.1/10★★★★☆Visit NEC -
Best forTeams integrating telephony with an existing IPBX
Rainbow combines IPBX telephony with messaging, meetings and sharing across cloud or hybrid deployments.
- Business phone
- Video meetings
- Team messaging
7.0/10★★★★☆Visit site -
Best forOrganizations extending existing SIP or PBX infrastructure
A multi-platform communications client that connects collaboration with existing SIP and PBX systems.
- Business phone
- Video meetings
- Team messaging
6.8/10★★★☆☆Visit Quobis -
Best forTeams centered on meetings and messaging
A broad collaboration app with a free tier; business calling is included in Webex Suite.
6.6/10★★★☆☆Visit Webex -
Best forTeams focused on meetings and workplace collaboration
A broad workplace collaboration suite, with business calling not established by its listed features.
6.5/10★★★☆☆Visit Zoom -
Best forOrganizations managing customer feedback and journeys
A customer experience analytics platform, not a unified business communications suite.
6.0/10★★★☆☆Contact Cisco
No tools match those filters.
Compare at a glance
| # | Tool | Free plan | Paid from | Score |
|---|---|---|---|---|
| 1 | RingCentral RingEX | No | $19.99/user/mo | 9.3 |
| 2 | 3CX | Yes | $300/yr | 9.2 |
| 3 | Avaya Cloud Office | No | 9.1 | |
| 4 | GoTo Connect | No | 9.0 | |
| 5 | Sangoma Communications Platform | 8.9 | ||
| 6 | Vonage Business Communications | No | 8.8 | |
| 7 | BT Cloud Voice | No | £10.52/user/mo | 8.7 |
| 8 | net2phone UNITE | No | $19.99/user/mo | 8.6 |
| 9 | Microsoft Teams | Yes | 8.5 | |
| 10 | Nextiva | $15/user/mo | 8.4 | |
| 11 | Dialpad Connect | No | 8.3 | |
| 12 | Intermedia Unite | No | $27.99/user/mo | 8.2 |
| 13 | Broadvoice Cloud PBX | No | $10/user/mo | 8.1 |
| 14 | Wildix | No | 8.0 | |
| 15 | PanTerra Streams.AI | No | $17.95/user/mo | 7.9 |
| 16 | NFON Cloudya | No | €6.80/user/mo | 7.8 |
| 17 | Placetel | No | €6.90/user/mo | 7.7 |
| 18 | Ooma Office | No | 7.6 | |
| 19 | Yeastar P-Series Cloud Edition | No | 7.5 | |
| 20 | Grandstream CloudUCM | No | 7.4 | |
| 21 | BoomTalk | No | $20/seat/mo | 7.3 |
| 22 | Evolve IP Phone System | 7.2 | ||
| 23 | UNIVERGE BLUE CONNECT | 7.1 | ||
| 24 | Orange Business Rainbow | Yes | 7.0 | |
| 25 | Quobis Collaborator | 6.8 | ||
| 26 | Webex App | Yes | 6.6 | |
| 27 | Zoom Workplace | Yes | 6.5 | |
| 28 | Webex Experience Management | 6.0 |
Head-to-head All 18 comparisons →
- RingCentral RingEX vs Sangoma Communications Platform
- RingCentral RingEX vs BT Cloud Voice
- RingCentral RingEX vs net2phone UNITE
- 3CX vs Sangoma Communications Platform
- 3CX vs BT Cloud Voice
- 3CX vs net2phone UNITE
- Avaya Cloud Office vs Sangoma Communications Platform
- Avaya Cloud Office vs BT Cloud Voice
- Avaya Cloud Office vs net2phone UNITE
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How we rank unified communications as a service
Every tool on this page was researched by iTechGuides Editors from its official website — pricing pages, plan tables and product documentation. We rank on how well each one does this category's core job, what the free or entry plan includes, and where it falls short. Where we have enough verified facts, the score out of 10 is a rubric — job fit, value and how much we could verify — shown with its breakdown on every tool's page; a tool we have not verified enough to score yet shows its rank without a number. Scores are re-checked when a product changes its plans. Read the full editorial policy, or submit a tool we missed.
Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026
Last updated · How we research and update