G2 Vendor Directory

Avaya Contact Center vs. Zendesk Contact Center

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

MetricAvaya Contact Center

by Avaya

Zendesk Contact Center

by Zendesk

Overall rating4.14.5
Review count189327
Ease of use8.79.2
Ease of setup8.19.0
Quality of support8.59.4
Meets requirements8.99.1
NPS39.13043570.347003
Small Business16.0%30.2%
Mid-Market33.5%59.2%
Enterprise50.5%10.6%
Total page views610878
Total LLM citations1,5506,211

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

Zendesk Contact Center

Zendesk for Contact Center is built with AI at its core to remove the gaps between channels, agents, and systems so every contact gets resolved faster across voice, self-service, and digital. Powered by the Zendesk Resolution Platform, it simplifies operations, accelerates service, and eliminates the fragility of legacy stacks and bolted-on tools. AI is embedded across every channel to accelerate agents and deflect the rest. Voice is native with AI Agents and Voice Copilot. And AI powered WFM, QA and reporting are included, no vendors to chase, no code to manage.

Pros

  • Ease of Use
  • Helpful
  • Efficiency
  • Features
  • Customer Support
  • Intuitive