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Avaya Infinity Platform vs Five9 comparison

 

Comparison Buyer's Guide

Executive SummaryUpdated on Aug 11, 2025

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
2nd
Average Rating
8.6
Reviews Sentiment
7.8
Number of Reviews
24
Ranking in other categories
Workforce Engagement Management (2nd), Contact Center Infrastructure (1st), Sales Force Automation (4th), Contact Center as a Service (CCaaS) (2nd)
 

Mindshare comparison

As of October 2025, in the Contact Center Platforms category, the mindshare of Avaya Infinity Platform is 7.9%, up from 5.5% compared to the previous year. The mindshare of Five9 is 12.9%, down from 14.9% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Contact Center Platforms Market Share Distribution
ProductMarket Share (%)
Five912.9%
Avaya Infinity Platform7.9%
Other79.2%
Contact Center Platforms
 

Featured Reviews

Abeer ELADAWY - PeerSpot reviewer
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.
Pedro Pulido - PeerSpot reviewer
Seamless integration with our CRM gives our agents all the information in one place
In my role, the admin tools are most valuable, such as using the UI to configure all the campaigns and all the settings that we use. Also, the monitoring panels it has are very good. Our supervisors and sales managers build dashboards in the solution so that we can understand how our operation is performing throughout the day. That is very useful. We have implemented workflows, and the Five9 WorkFlow Automation feature works very well. We're very happy with the tool. Five9 offers a very reliable solution, and that's why we are aiming to implement the new technologies in which AI is involved. We use Five9 with Salesforce, and it works very well. It's seamless. We practically never have problems with that integration. The information comes and goes without a problem. The Salesforce integration helps agents a lot. It's easy to use, so they get familiar with it very quickly. Because of the way it integrates, it's like looking at one platform; it's all on one screen. They can see the call information and the information about the lead. It's very easy to read and very user-friendly. On the side of the workforce that I am on, we are constantly working on improving our costs. We have to understand how long our calls are taking, and we are able to do all that analysis because of how Five9 presents all the information in the dashboard and how quickly we can analyze it. It's very useful to have a practical way to see the information and understand it. Also, making changes is not that hard. For example, maybe we don't want to make that many calls; we want to make fewer. That's easy to do. It's a tool that allows you to make decisions and implement them very quickly.

Quotes from Members

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

Pros

"The technical support services are good."
"It's scalable, it's fast, and it is very robust."
"I rate the overall Five9 solution a nine out of ten."
"Five9 has made our contact center more flexible by taking it to the cloud. The user experience for agents is great because everything is on one dashboard, from the dialer to the workflows for transferring calls and creating tickets."
"The reporting is the most valuable feature in Five9."
"Five9's most critical feature is a common user interface that delivers consistent customer service across various channels."
"The product’s IVR script editor is very easy and simple to use."
"I really appreciate Five9 because I do not have to do much creatively, as everything is automated."
"When it comes to drop calls, we don't have a problem. They are performing to our satisfaction."
"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."
 

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."
"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 should provide free training resources for end users, including agents, supervisors, and admins."
"Five9's stability needs to be improved."
"The technical support is inconsistent and has room for improvement."
"There are some minor issues with some of their filtering that I'd like them to handle on their back end. The only limitation I can think of is that I'm always looking backward and can't look forward. I can't see how many calls are scheduled for tomorrow based on our system."
"The reporting could be a bit better."
"The knowledge base of their support is not as strong as the IVR build."
"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."
"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."
"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."
"The product is not the most expensive, but it's not cheap."
"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."
"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."
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Top Industries

By visitors reading reviews
Manufacturing Company
16%
Financial Services Firm
12%
Insurance Company
9%
Comms Service Provider
7%
Financial Services Firm
12%
Manufacturing Company
11%
Computer Software Company
10%
Insurance Company
7%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
No data available
By reviewers
Company SizeCount
Small Business7
Midsize Enterprise7
Large Enterprise6
 

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?
Five9 ( /products/five9-reviews ) should improve its omnichannel feature, allowing partners to manage all tenants with a single account rather than needing multiple accounts for each customer. Addi...
What is your primary use case for Five9?
We deploy Five9 ( /products/five9-reviews ) for our customers who use it as a contact center solution.
 

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: September 2025.
868,787 professionals have used our research since 2012.