G2 Vendor Directory

Avaya Contact Center vs. Five9 Intelligent Cloud Contact Center Platform

A side-by-side comparison based on G2 review data.

MetricAvaya Contact Center

by Avaya

Five9 Intelligent Cloud Contact Center Platform

by Five9

Overall rating4.14.1
Review count189625
Ease of use8.78.7
Ease of setup8.18.3
Quality of support8.58.5
Meets requirements8.98.6
NPS39.13043541.225166
Small Business16.0%23.8%
Mid-Market33.5%56.5%
Enterprise50.5%19.7%
Total page views6102,335
Total LLM citations1,55018,550

Avaya Contact Center

Avaya Contact Center is delivered through Avaya Infinity, a cloud-native platform designed to orchestrate seamless customer experiences across all channels. Built on a modern microservices architecture with open AI orchestration, Avaya Infinity enables organizations to intelligently manage voice, digital, email, and messaging interactions. It provides dynamic routing, AI-powered automation, and real-time orchestration—with the unique flexibility to deploy fully in the cloud, on-premises, or in a hybrid environment.

Pros

  • Calling Features
  • Features
  • Connectivity
  • Analytics
  • Ease of Use
  • Call Quality

Five9 Intelligent Cloud Contact Center Platform

Founded in 2001 and headquartered in San Ramon, California, Five9 has evolved into a global CX leader with over 2,500 customers worldwide. As a pioneer in cloud contact center technology, Five9 serves organizations across industries looking to transform customer experiences through intelligent, personalized interactions. With over 1,400 partners globally and 2,700 employees, Five9 combines deep CX expertise with innovative technology to help brands deliver better business outcomes.

Pros

  • Ease of Use
  • Customer Support
  • Helpful
  • Features
  • Efficiency
  • Easy Setup