G2 Vendor Directory

Twilio Flex vs. Avaya Contact Center

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

MetricTwilio Flex

by Twilio

Avaya Contact Center

by Avaya

Overall rating4.14.1
Review count37189
Ease of use8.58.7
Ease of setup7.98.1
Quality of support8.58.5
Meets requirements8.58.9
NPS25.80645239.130435
Small Business32.4%16.0%
Mid-Market41.2%33.5%
Enterprise26.5%50.5%
Total page views200610
Total LLM citations1,6481,550

Twilio Flex

Modernize your customer and employee experience in place by embedding voice, SMS, WhatsApp, and email into the apps you already use. Twilio Flex orchestrates interactions across channels, AI-driven automation, and human agents so conversations stay connected and context stays intact. Human agents get a complete view of every interaction without switching between tools or piecing together fragmented data. With a composable architecture and User + Usage pricing, you only pay for what you use and control how you build and scale customer experiences.

Pros

  • Easy Integration
  • Integrations
  • Chat Feature
  • Intuitive
  • Customizability
  • Customization

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