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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 March 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.
Has enabled seamless integration and simplified setup for client services with minimal technical requirements
The system is easy to manage. End users do not need to provide much technical support. They just rent the necessary number of users, and that's it. End users don't need a dedicated IT person to manage the system as it is a serverless service. Five9 provides powerful CRM integration capabilities with platforms like Salesforce, Zendesk, and Oracle Service Cloud, making it highly valuable for large companies. Additionally, omnichannel capabilities, such as web chat and social media integration, offer a customized experience.

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."
"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."
"Before using the WFO and its analytics, our quality teams would listen to only 5 percent of contacts a week, per employee, which is a very small part of what an employee is doing... Now, this tool does an automatic evaluation of 100 percent of their calls. It has certainly helped the QA teams in their training, and that, in turn, helps our clients."
"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."
"The most valuable feature is the simplicity of making scripts within the contact center solution itself."
"The tool enables easier management."
"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."
"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."
"It helped reduce costs in our organization. We've saved on staffing and we've saved on software by 10% to 15%."
 

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."
"The pricing could be improved. It is set in US dollars, so it doesn't account for the exchange rate with other regions."
"Integration with third-party solutions can be difficult and has room for improvement."
"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."
"What would make Five9 better is a partnership with an SMS AI solution, which would make Five9 pretty powerful."
"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..."
"The knowledge base of their support is not as strong as the IVR build."
"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..."
 

Pricing and Cost Advice

"Avaya Contact Center solutions might not be the cheapest solution available (but you certainly get what you pay for)."
"I prefer Five9's licensing model."
"Five9 is expensive, but most companies would find that using it is worth the cost."
"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 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 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 reasonable."
"The product is not the most expensive, but it's not cheap."
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Top Industries

By visitors reading reviews
Manufacturing Company
18%
Financial Services Firm
11%
Comms Service Provider
9%
Insurance Company
9%
Financial Services Firm
12%
Manufacturing Company
12%
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.
884,873 professionals have used our research since 2012.