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Head-to-head · Cloud PBX Software

Avaya Cloud Office vs Microsoft Teams

  • Updated Oct 2026
  • Both researched from official sources
  • 2 checks side by side
Higher score Avaya Cloud Office #4 in Cloud PBX Software 9.1/10 Paid ✓ 1 of 3 features Visit Avaya
Microsoft Teams #6 in Cloud PBX Software 8.9/10 Free plan Free plan✓ 0 of 3 features Try Microsoft Teams

Avaya Cloud Office leads on 0 checks, Microsoft Teams on 1, and 1 is even. Who comes out ahead on the 2 yes/no, price and count checks where we have data for both products. The editor score weighs everything else too.

Our verdict

  • Highest scoreAvaya Cloud Office · 9.1/10
  • Free planonly Microsoft Teams
  • Most featuresAvaya Cloud Office · 1 of 3

Avaya Cloud Office scores higher on our rubric for cloud pbx software: 9.1 against 8.9 out of 10; our editors rank them #4 and #6.

Microsoft Teams offers free plan; Avaya Cloud Office doesn't.

Avaya Cloud Office is the better fit for teams wanting PBX alongside meetings and collaboration. Microsoft Teams is the better fit for microsoft-centric teams adding cloud calling to.

  • Avaya Cloud Office fits best

    Teams wanting PBX alongside meetings and collaboration

  • Microsoft Teams fits best

    Microsoft-centric teams adding cloud calling to

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Side by side

Feature Avaya Cloud Office 9.1/10 Visit ↗ Microsoft Teams 8.9/10 Visit ↗
At a glance
Editor score 9.1 8.9
Ranking #4 in Cloud PBX Software #6 in Cloud PBX Software
Best for Teams wanting PBX alongside meetings and collaboration Microsoft-centric teams adding cloud calling to
Pricing model Paid Free plan + paid
Starting price — —
Free plan — ✓ (best)
Free trial — —
Deployment Cloud, Desktop, Mobile Cloud, Desktop, Mobile
Platforms Web, Windows, macOS, iOS, Android Web, Windows, macOS, Linux, iOS, Android
Support Docs · 24/7 Phone, Docs, Community
Compliance SOC 2 SOC 2, ISO 27001, HIPAA, 2FA
Integrations 300+ integrations 250+ integrations
Built for Small business, Mid-market, Enterprise Solo, Small business, Mid-market, Enterprise
Features Avaya Cloud Office 1/3 · Microsoft Teams 0/3
Auto attendant ✓ (best) Not checked yet
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
  • 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
  • Free plan covers chat, video calls, file sharing, and collaboration
  • Teams Phone Standard offers cloud calling, voicemail, and a 99.999% uptime SLA
  • Works across web, desktop, mobile, Linux, and 250 integrations
Cons
  • 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
  • Teams Free is primarily positioned for personal use
  • Phone features are split across separate Teams Phone plans
  • Broad collaboration features may exceed a calling-only requirement
Our verdict

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 →

Microsoft Teams combines private and group chat, organized channels, audio and video meetings, cloud-based calling and voicemail, file sharing, collaborative editing, guest access, and workflow tools. It fits solo users, small businesses,…

Read the review →
  1. Avaya Cloud OfficeCloud PBX Software 9.1Paid
  2. Microsoft TeamsCloud PBX Software 8.9Free plan

Strengths and trade-offs

  • 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

  • Microsoft Teams — where it wins

    • Free plan covers chat, video calls, file sharing, and collaboration
    • Teams Phone Standard offers cloud calling, voicemail, and a 99.999% uptime SLA
    • Works across web, desktop, mobile, Linux, and 250 integrations

    Where it doesn't

    • Teams Free is primarily positioned for personal use
    • Phone features are split across separate Teams Phone plans
    • Broad collaboration features may exceed a calling-only requirement

More comparisons

All cloud PBX software comparisons → · Full ranking →

Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026

Last updated · How we research and update