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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) (5th)
Five9
Ranking in Contact Center Platforms
3rd
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 (8th), Contact Center as a Service (CCaaS) (3rd)
 

Mindshare comparison

As of April 2026, in the Contact Center Platforms category, the mindshare of Avaya Infinity Platform is 7.3%, up from 7.3% compared to the previous year. The mindshare of Five9 is 8.3%, down from 15.5% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Contact Center Platforms Mindshare Distribution
ProductMindshare (%)
Five98.3%
Avaya Infinity Platform7.3%
Other84.4%
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.
Call efficiency improves dramatically with features that ensure smooth communication
There are several audio issues that need attention. Whenever I disconnect a headset after connecting to the VDI, the station connection in Five9 disconnects automatically, requiring a VMware restart. Also, during logins, there are issues with station connections. This may lead to IP Protocol errors that require browser resets and other troubleshooting steps.

Quotes from Members

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

Pros

"It's scalable, it's fast, and it is very robust."
"Avaya offers some of the most widely used (and therefore tested and improved) contact center solutions available."
"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 reporting is good, and we're testing AI summaries now. Also, the workflow automation feature, so far, has been good."
"When it comes to drop calls, we don't have a problem. They are performing to our satisfaction."
"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."
"I have been using Five9 for nearly 10 years now with multiple clients, and I don't think there is any other product out there which is even comparable to the usability and functionality that Five9 has."
"I like the capability of call and screen recording. It has helped us to hold our agents accountable to the expectations for the role. It creates a clearer picture than giving feedback that is just based on calls that we may have listened to, but we do not have anything to show the agents themselves."
"Overall, Five9 has made my job easier compared to before, and I do not struggle with it."
"The reporting is the most valuable feature in Five9."
 

Cons

"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."
"Avaya Contact Center solutions might not be the cheapest solution available (but you certainly get what you pay for)."
"Five9 should provide free training resources for end users, including agents, supervisors, and admins."
"Integration with third-party solutions can be difficult and has room for improvement."
"Five9's stability needs to be improved."
"The pricing could be improved. It is set in US dollars, so it doesn't account for the exchange rate with other regions."
"Maintaining the original DNS on Five9 across campaigns is difficult."
"What would make Five9 better is a partnership with an SMS AI solution, which would make Five9 pretty powerful."
"There are certain issues around features that Chrome has deployed that we have to figure out. When we bring them to Five9's attention, they are usually able to help us navigate them. It seems that sometimes they already know about an issue, so it would be helpful if they more proactively engaged with us first..."
"Maybe they could do better on how we access all the data if we want the data to work outside of Five9. Sometimes, that's not the easiest process. It's not bad, but if there's an area for improvement, that could be one."
 

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 expensive, but most companies would find that using it is worth the cost."
"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."
"Their license structure, out of the box, is better than that of other providers and their pricing is much less than other vendors we've looked at."
"The cost is not at the lower end of the market, but it's worth it."
"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."
"The product is not the most expensive, but it's not cheap."
"I prefer Five9's licensing model."
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Top Industries

By visitors reading reviews
Manufacturing Company
17%
Financial Services Firm
11%
Insurance Company
8%
Comms Service Provider
8%
Financial Services Firm
12%
Manufacturing Company
11%
Insurance Company
9%
Healthcare Company
6%
 

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 do you like most about Five9?
I like the capability of call and screen recording. It has helped us to hold our agents accountable to the expectations for the role. It creates a clearer picture than giving feedback that is just ...
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.
 

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: March 2026.
885,789 professionals have used our research since 2012.