G2 Vendor Directory

Allo vs. Avaya Unified Communications

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

MetricAllo

by The Mobile-First Company

Avaya Unified Communications

by Avaya

Overall rating4.74.2
Review count20942
Ease of use9.68.9
Ease of setup9.58.1
Quality of support9.68.7
Meets requirements9.39.2
NPS78.2608744.736842
Small Business87.0%16.7%
Mid-Market13.0%23.8%
Enterprise0.0%59.5%
Total page views1,288406
Total LLM citations7,305728

Allo

The last phone system you'll ever buy. Allo is a phone system for small and growing teams, from 1 to 250 people. You get calls that hold, AI that does real work after every call, and a real person when you need help. Rated 4.7/5 on G2 by 6,000+ businesses. CALLS YOU CAN COUNT ON • 4x fewer dropped calls and spam flags, on infrastructure we built ourselves • 99.94% uptime • Local numbers in 80+ countries, and calls to 192 destinations • Unlimited national calls • Keep your number: porting is free AI THAT DOES THE WORK • Every call is recorded, transcribed and summarized, with nothing to

Pros

  • Ease of Use
  • Call Recording
  • Customer Support
  • Reliability
  • Easy Setup
  • Easy Integration

Avaya Unified Communications

Avaya Unified Communications (UC) is an integrated platform that consolidates multiple communication and collaboration channels into a single, cohesive system. Designed for modern enterprises, Avaya UC enables organizations to streamline communications across voice, video, messaging, and conferencing while supporting flexible work environments and seamless device mobility.

Pros

  • Ease of Use
  • Video Conferencing
  • Instant Messaging
  • Remote Work
  • VoIP Services
  • Easy Integration