RingCentral RingEX vs Avaya Cloud Office

RingCentral RingEX9.4Visit AOAvaya Cloud Office9.1Visit

Higher score RingCentral RingEX #1 in Cloud PBX Software 9.4/10 14-day trial Free trial✓ 1 of 3 features Visit RingCentral

vs

AO Avaya Cloud Office #4 in Cloud PBX Software 9.1/10 Paid ✓ 1 of 3 features Visit Avaya

• RingCentral RingEX fits best

  Teams needing a full-featured, multi-site cloud PBX

• Avaya Cloud Office fits best

  Teams wanting PBX alongside meetings and collaboration

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Side by side

Feature	RingCentral RingEX 9.4/10 Visit ↗	AOAvaya Cloud Office 9.1/10 Visit ↗
At a glance
Editor score	9.4	9.1
Ranking	#1 in Cloud PBX Software	#4 in Cloud PBX Software
Best for	Teams needing a full-featured, multi-site cloud PBX	Teams wanting PBX alongside meetings and collaboration
Pricing model	Paid	Paid
Starting price	$19.99/user/mo	—
Free plan	—	—
Free trial	14 days	—
Deployment	Cloud, Desktop, Mobile	Cloud, Desktop, Mobile
Platforms	Web, Windows, macOS, iOS, Android	Web, Windows, macOS, iOS, Android
Support	Phone, Live chat, Community, Docs · 24/7	Docs · 24/7
Compliance	SOC 2, ISO 27001, HIPAA, SSO/SAML	SOC 2
Integrations	500+ integrations	300+ integrations
Built for	Small business, Mid-market, Enterprise	Small business, Mid-market, Enterprise
Features RingCentral RingEX 1/3 · Avaya Cloud Office 1/3
Auto attendant	✓	✓
Call recording	Not checked yet	Not checked yet
Call queues	Not checked yet	Not checked yet
Specs
Number types	Not checked yet	Not checked yet
Supported endpoints	Not checked yet	Not checked yet
Extensions included	Not checked yet	Not checked yet
Our review
Pros	Multi-level IVR, custom routing, and business-hour call rules Calling, SMS, messaging, video, fax, and voicemail in one platform Works across web, desktop, mobile, and API; 500 integrations	Auto-Receptionist, call groups, and customizable call handling Messaging, file sharing, conferencing, and video meetings in one service Desktop and mobile apps plus 300+ business integrations
Cons	Essentials is limited to calls within the US and Canada Automatic call recording starts with the Premium plan The paid plans may be more than needed for phone-only teams	Plan features vary substantially, so buyers must match tier to needs Advanced controls such as recording and SSO start at Premium Designed as a broad communications suite, not voice-only PBX
Our verdict	RingCentral RingEX brings business calling, SMS, team messaging, video meetings, fax, and voicemail together in a cloud communications platform. Its auto-attendant, single- and multi-level IVR, custom call routing, and business-hour rules… Read the review →	Avaya Cloud Office brings business calling, messaging, file sharing, video meetings, and conferencing into one cloud communications service. It suits organizations with office, remote, or mobile workers that want PBX capabilities alongside… Read the review →

Strengths and trade-offs

• RingCentral RingEX — where it wins

  • Multi-level IVR, custom routing, and business-hour call rules
  • Calling, SMS, messaging, video, fax, and voicemail in one platform
  • Works across web, desktop, mobile, and API; 500 integrations

  Where it doesn't

  • Essentials is limited to calls within the US and Canada
  • Automatic call recording starts with the Premium plan
  • The paid plans may be more than needed for phone-only teams

• Avaya Cloud Office — where it wins

  • Auto-Receptionist, call groups, and customizable call handling
  • Messaging, file sharing, conferencing, and video meetings in one service
  • Desktop and mobile apps plus 300+ business integrations

  Where it doesn't

  • Plan features vary substantially, so buyers must match tier to needs
  • Advanced controls such as recording and SSO start at Premium
  • Designed as a broad communications suite, not voice-only PBX

• RingCentral RingEX9.4/10 · 14-day trial

  A broad cloud PBX with flexible call handling, messaging, and collaboration tools.

  Visit RingCentralFull verdict →
• AOAvaya Cloud Office9.1/10 · Paid

  A multi-tier cloud PBX that combines business calling with messaging and meetings.

  Visit AvayaFull verdict →