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Avaya Infinity Platform vs Five9 comparison

 

Comparison Buyer's Guide

Executive SummaryUpdated on Feb 22, 2026

Review summaries and opinions

We asked business professionals to review the solutions they use. Here are some excerpts of what they said:
 

Categories and Ranking

Avaya Infinity Platform
Ranking in Contact Center Platforms
5th
Average Rating
9.6
Reviews Sentiment
8.6
Number of Reviews
2
Ranking in other categories
Communications Platform as a Service (CPaaS) (4th)
Five9
Ranking in Contact Center Platforms
4th
Average Rating
8.6
Reviews Sentiment
6.5
Number of Reviews
25
Ranking in other categories
Workforce Engagement Management (3rd), Contact Center Infrastructure (1st), Sales Force Automation (6th), Contact Center as a Service (CCaaS) (3rd)
 

Mindshare comparison

As of June 2026, in the Contact Center Platforms category, the mindshare of Avaya Infinity Platform is 7.2%, down from 9.1% compared to the previous year. The mindshare of Five9 is 6.7%, down from 15.9% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Contact Center Platforms Mindshare Distribution
ProductMindshare (%)
Five96.7%
Avaya Infinity Platform7.2%
Other86.1%
Contact Center Platforms
 

Featured Reviews

Abeer ELADAWY - PeerSpot reviewer
Deputy Senior Manager, Customer Interaction Management at DEWA
Provides omnichannel AI features and has good routing capabilities
The routing capabilities are excellent. We have priority routing set up for VIP customers, disabled customers, and those with special needs, ensuring they receive prompt and efficient service. We have implemented a use case where AI helps when a customer calls and says, "My bill is high." The AI searches the customer's profile to check if the high consumption is real or just a misunderstanding. If it is high, the AI creates a notification for the backend to check the issue. The system automatically generates the bill and the notification for the agent, who then views and either submits or rejects the notification. I recommend using the solution for all the features I have mentioned before, including the excellent AI experience, omnichannel, self-service, and customer journey features. I rate it a nine.
reviewer2788932 - PeerSpot reviewer
CX Intelligence Analytics at a healthcare company with 1,001-5,000 employees
Advanced call routing has enabled complex CRM-driven workflows but reporting still needs improvement
The complex call routing capabilities were valuable. I was able to set up fairly complex call routing, capturing data via internal IVR for potential customers' geography and then conducting lookups to determine which skill to route calls to. I also set up complex rollover, so if the first person could not answer, callers would wait a specified number of seconds hoping they would become available, and if they did not, the call would roll over to the next person. I was able to set up fairly complex integrations between our CRM and leverage that data for complex call routing, and it worked well. The integration and call routing both performed well.

Quotes from Members

We asked business professionals to review the solutions they use. Here are some excerpts of what they said:
 

Pros

"Avaya offers some of the most widely used (and therefore tested and improved) contact center solutions available."
"It's scalable, it's fast, and it is very robust."
"The technical support services are good."
"The admin platform is easy to use and navigate. That has been incredibly useful for us because it has given us the ability to self-provision in a lot of situations. The ability to create and track data elements has also been a valuable addition."
"The technical support for Five9 has been exemplary."
"I rate the overall Five9 solution a nine out of ten."
"Agent Assist and AI server are the two best features because they remind new and existing agents about tips and generate detailed case summaries, saving them the time and effort of making small modifications before posting."
"Five9 is extremely easy to manage and maintain."
"The complex call routing capabilities were valuable, as I was able to set up fairly complex call routing, capturing data via internal IVR for potential customers' geography and then conducting lookups to determine which skill to route calls to, while also setting up complex rollover and integrations between our CRM to leverage that data for complex call routing, and it all worked well."
"The tool enables easier management."
"It helped reduce costs in our organization. We've saved on staffing and we've saved on software by 10% to 15%."
 

Cons

"Avaya Contact Center solutions might not be the cheapest solution available (but you certainly get what you pay for)."
"Its scalability means that it is not a simple 'install and forget' setup."
"The solution should be more flexible on-premises. We are currently on-premises and looking to move to the cloud."
"There have also been some challenges in being able to keep the format of an original email. The solution acts as a proxy, but it's not bringing over the full format that the email came in with... Five9's email channel isn't as good as some other vendors' email channels that I've seen. But there is an upgrade coming..."
"Five9 has an active-passive high-availability model. I would prefer active-active."
"During training and demos, resiliency tests failed, which was not ideal. This is a concern for stability."
"It would be ideal if they could combine the tools into one suite."
"Five9 should provide free training resources for end users, including agents, supervisors, and admins."
"Five9's stability needs to be improved."
"I would like to see more of the functions from the original Five9 adapter included in the Salesforce Plus adapter, as they do not automatically update when Five9 releases new features."
"Integration with third-party solutions can be difficult and has room for improvement."
 

Pricing and Cost Advice

"Avaya Contact Center solutions might not be the cheapest solution available (but you certainly get what you pay for)."
"Five9 is reasonable."
"Five9 is a little expensive because of our company's size. That said, it scales pretty well. The daily usage costs and monthly fees seem about right. It's not out of line with what we'd expect from other companies. However, they seem to have a one-size-fits-all implementation fee. Most of their clients have hundreds if not thousands of seats in the call centers, so $5,000 or $10,000 is not a huge cost. It would be nice if they had a sliding scale for smaller companies."
"Five9 is expensive, but most companies would find that using it is worth the cost."
"The product's pricing is flexible and reasonable."
"The pricing seems reasonable. I had anticipated that whatever solution we went with would be more expensive. I was actually pleasantly surprised that the features that we had in Evolve IP, one-to-one, did not cost significantly more in Five9."
"The cost is not at the lower end of the market, but it's worth it."
"I prefer Five9's licensing model."
"Five9's pricing wasn't quite as flexible as I'd hoped, but it ended up being reasonably priced overall."
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Top Industries

By visitors reading reviews
Manufacturing Company
15%
Financial Services Firm
13%
Insurance Company
10%
Comms Service Provider
8%
Financial Services Firm
14%
Manufacturing Company
9%
Insurance Company
8%
Construction Company
7%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
No data available
By reviewers
Company SizeCount
Small Business7
Midsize Enterprise7
Large Enterprise7
 

Questions from the Community

What needs improvement with Avaya IX Contact Center?
The solution should be more flexible on-premises. We are currently on-premises and looking to move to the cloud.
What is your primary use case for Avaya IX Contact Center?
The platform is a comprehensive contact center. It encompasses all the channels, including email, chat, voice, outbound, quality management, and workforce management. It provides everything a conta...
What advice do you have for others considering Avaya IX Contact Center?
The routing capabilities are excellent. We have priority routing set up for VIP customers, disabled customers, and those with special needs, ensuring they receive prompt and efficient service. We h...
What needs improvement with Five9?
The reporting suite needed improvement. I saw recently that Five9 released a new platform for reporting, as the reporting was not great previously.
What is your primary use case for Five9?
I was using Five9 in the senior living space.
What advice do you have for others considering Five9?
I was a Workforce Management Director in that role at that time. I would note that I have no experience with CXone, only IEX. As a telephony platform, Five9 served my needs. My overall review ratin...
 

Also Known As

Avaya IX Contact Center, Avaya Call Center, Avaya Intelligent Xperiences Contact Center , Avaya OneCloud
No data available
 

Overview

 

Sample Customers

RSA Medical, MOBITECHS, Capita IT Services, Pan Pacific Hotels Group, Maccabi Healthcare Services, SR Technics, Hampshire County Council, Severn Trent Water, SMECO, nTelos
Agilysys, BISSELL, From You Flowers, SumUp, Kyndryl, PING, Alaska Airlines, Omaha Steaks International, NextRep, AdventHealth
Find out what your peers are saying about Avaya Infinity Platform vs. Five9 and other solutions. Updated: June 2026.
900,644 professionals have used our research since 2012.