ITG VoIP Plug & Play - A business telephone system ready to use in three easy steps: 1. Choose a call plan 2. Get all features 3. Choose a phone
FreePBX Hosting - Cloud-hosted, commercially-supported version of FreePBX
thinQ - Cloud communication platform
Phone.com - VOIP Business Phone Service + Virtual PBX
Evolve IP Phone System - Evolve IP Phone System is an enterprise quality hosted PBX with advanced unified communications features.
RingCentral - RingCentral is the leading provider of cloud-based communications and collaboration solutions for small business and enterprise companies