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Avaya Infinity Platform vs Five9 comparison

 

Comparison Buyer's Guide

Executive SummaryUpdated on Nov 16, 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) (6th)
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 (2nd), Contact Center Infrastructure (1st), Sales Force Automation (8th), Contact Center as a Service (CCaaS) (3rd)
 

Mindshare comparison

As of January 2026, in the Contact Center Platforms category, the mindshare of Avaya Infinity Platform is 7.0%, up from 6.4% compared to the previous year. The mindshare of Five9 is 8.4%, down from 15.7% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Contact Center Platforms Market Share Distribution
ProductMarket Share (%)
Five98.4%
Avaya Infinity Platform7.0%
Other84.6%
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.
NS
Sr Specialist - Analytics Metrics and Reporting at Mercer
Real-time monitoring and reporting help with better operations
The Intelligent Virtual Agent (IVA) feature helps to monitor the agents. We can see if an agent is getting stuck. For example, if an agent has not been logged out properly, we can log out that particular agent from a particular session because it hampers productivity. It helps us to be more productive. Our call center agents use the Agent Assist feature. Our call center leaders are also using it to monitor agents' quality metrics. We are also using Qlik Sense along with Five9. Five9 is for monitoring, and Qlik Sense is for service-level reports. Five9 provides us with real-time information, whereas solutions like Verint take a lot more time. Qlik Sense can have intermittent logging issues where it might not work properly, whereas Five9 works properly. Among these three, Five9 is the best. Five9 also gives more bifurcation options. Five9 is good and intuitive. It helps to know how things are. I love it and use it every day. There are always new reports to generate. There are a lot of opportunities within Five9. Additionally, the real-time agent monitoring and ability to skill agents based on calls in the queue are invaluable and much easier than previous solutions like the AWS application. Previously, using the AWS application involved cumbersome steps to manage users and agents, making Five9 a welcome change. Overall, Five9 has made my job easier compared to before, and I do not struggle with it. Five9 has helped improve our call center’s speed to answer. Our leaders are using Five9 to monitor everything. It is not a time-consuming application.

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."
"The technical support services are good."
"I really appreciate Five9 because I do not have to do much creatively, as everything is automated."
"It helped reduce costs in our organization. We've saved on staffing and we've saved on software by 10% to 15%."
"The most valuable feature is the simplicity of making scripts within the contact center solution itself."
"Queue callback, agent skill-based routing, call reporting, and the flexibility to log in from anywhere are some of the most valuable features for our organization."
"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's most critical feature is a common user interface that delivers consistent customer service across various channels."
"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."
"Five9 has a lot of AI tools, which I find valuable. It offers transcription services and a power dialer for outbound dialing. I like that Five9 is built for outbound and suitable for that purpose."
 

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 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."
"During training and demos, resiliency tests failed, which was not ideal. This is a concern for stability."
"What would make Five9 better is a partnership with an SMS AI solution, which would make Five9 pretty powerful."
"The technical support is inconsistent and has room for improvement."
"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..."
"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."
"The reporting suite needed 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."
 

Pricing and Cost Advice

"Avaya Contact Center solutions might not be the cheapest solution available (but you certainly get what you pay for)."
"The product's pricing is flexible and reasonable."
"Five9's pricing wasn't quite as flexible as I'd hoped, but it ended up being reasonably priced overall."
"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."
"Five9 is reasonable."
"Five9 is expensive, but most companies would find that using it is worth the cost."
"The cost is not at the lower end of the market, but it's worth it."
"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."
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Top Industries

By visitors reading reviews
Manufacturing Company
15%
Financial Services Firm
12%
Insurance Company
9%
Comms Service Provider
8%
Financial Services Firm
12%
Manufacturing Company
11%
Insurance Company
9%
Healthcare 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 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: December 2025.
881,082 professionals have used our research since 2012.