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Head-to-head · Cloud PBX Software

Zoom Phone vs Avaya Cloud Office

  • Updated Oct 2026
  • Both researched from official sources
  • 2 checks side by side
Higher score Zoom Phone #3 in Cloud PBX Software 9.2/10 Paid ✓ 1 of 3 features Visit Zoom Phone
Avaya Cloud Office #4 in Cloud PBX Software 9.1/10 Paid ✓ 1 of 3 features Visit Avaya

Zoom Phone leads on 0 checks, Avaya Cloud Office on 0, and 2 are 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 scoreZoom Phone · 9.2/10

Zoom Phone scores higher on our rubric for cloud pbx software: 9.2 against 9.1 out of 10; our editors rank them #3 and #4.

Zoom Phone is the better fit for businesses wanting global calling at a clear entry price. Avaya Cloud Office is the better fit for teams wanting PBX alongside meetings and collaboration.

  • Zoom Phone fits best

    Businesses wanting global calling at a clear entry price

  • Avaya Cloud Office fits best

    Teams wanting PBX alongside meetings and collaboration

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Side by side

Feature Zoom Phone 9.2/10 Visit ↗ Avaya Cloud Office 9.1/10 Visit ↗
At a glance
Editor score 9.2 9.1
Ranking #3 in Cloud PBX Software #4 in Cloud PBX Software
Best for Businesses wanting global calling at a clear entry price Teams wanting PBX alongside meetings and collaboration
Pricing model Paid Paid
Starting price $10/user/mo —
Free plan — —
Free trial — —
Deployment Cloud, Desktop, Mobile Cloud, Desktop, Mobile
Platforms Web, Windows, macOS, Linux, iOS, Android Web, Windows, macOS, iOS, Android
Support Phone, Community, Docs Docs · 24/7
Compliance SOC 2, HIPAA SOC 2
Integrations 7 integrations 300+ integrations
Built for Small business, Mid-market, Enterprise Small business, Mid-market, Enterprise
Features Zoom Phone 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
  • Plans start at $10 per user monthly, with unlimited and global tiers.
  • Desktop, mobile, web, Linux, and API access support varied teams.
  • Auto attendants, queues, routing, monitoring, and recording cover core PBX needs.
  • 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
  • There is no free plan.
  • Metered calling is the entry tier rather than unlimited calling.
  • Pricing varies by country, currency, calling plan, and bundle.
  • 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

Zoom Phone is a cloud-based business phone system for organizations that need internet calling, business numbers, routing, auto attendants, queues, voicemail, recording, and administrative controls. It serves small businesses, mid-market…

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 →
  1. Zoom PhoneCloud PBX Software 9.2Paid
  2. Avaya Cloud OfficeCloud PBX Software 9.1Paid

Strengths and trade-offs

  • Zoom Phone — where it wins

    • Plans start at $10 per user monthly, with unlimited and global tiers.
    • Desktop, mobile, web, Linux, and API access support varied teams.
    • Auto attendants, queues, routing, monitoring, and recording cover core PBX needs.

    Where it doesn't

    • There is no free plan.
    • Metered calling is the entry tier rather than unlimited calling.
    • Pricing varies by country, currency, calling plan, and bundle.

  • 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

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