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Josh P.
Advisor, 7 years

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Updated January 6, 2026
Avaya UCaaS vs Unified Communications as a Service (UCaaS): Which is best for you?
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55+ software advisors
1 million+ businesses helped
2 million+ verified software reviews
Starting Price
Pricing available upon request
Pricing available upon request
Free Trial
Free Version
Screenshots
and Demo
and Demo
See all
See all
Top Rated
Features
Features
Voice Mail
4.89
Chat/Messaging
4.82
Call Center Management
4.65
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Call Routing
4.56
Voice Mail
4.44
Caller ID
4.38
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Integrations
See All
See All
Pros / Cons
- Overall, my experience with Avaya UCaaS has been good, it delivers dependable communication and collaboration, though the interface and features could use some modernization.
- Some of the features feel a bit outdated and slow, and the interface could be more modern and user-friendly.
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- The IM, audio and video conferencing, not to mention the telephony platform is outstanding.
- The Osmosis portal is a bit antiquated and the reporting isn't user friendly.
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Ease-of-Use
4.3/ 5
4.3/ 5
Value for Money
4.2/ 5
4.2/ 5
Customer Support
4.2/ 5
Highest performing feature
in the comparison
4.3/ 5in the comparison
Functionality
Highest performing feature
in the comparison
4.4/ 5in the comparison
4.3/ 5
Support Options
Email/Help Desk
FAQs/Forum
Knowledge Base
Phone Support
24/7 (Live Rep)
Chat
Email/Help Desk
FAQs/Forum
Knowledge Base
Phone Support
24/7 (Live Rep)
Chat
Training Options
In Person
Live Online
Webinars
Documentation
Videos
In Person
Live Online
Webinars
Documentation
Videos
FrontRunners
N/A
N/A
Advisor
Recommendations
Recommendations
N/A
N/A
Ideal Customer Size
Small
Medium
Large
Small
Medium
Large
Deployment Options
Cloud, SaaS, Web-Based
Desktop - Mac
Desktop - Windows
Desktop - Linux
Desktop - Chromebook
On-Premise - Windows
On-Premise - Linux
Mobile - Android
Mobile - iPhone
Mobile - iPad
Cloud, SaaS, Web-Based
Desktop - Mac
Desktop - Windows
Desktop - Linux
Desktop - Chromebook
On-Premise - Windows
On-Premise - Linux
Mobile - Android
Mobile - iPhone
Mobile - iPad