Five9 - Five9 provides cloud-based call center software for sales, marketing and support.
8x8 Cloud Contact Center - 8x8 Cloud Contact Center is a VoIP call center solution.
VoIPstudio - VoIPstudio is an award-winning VoIP system that offers businesses of all sizes a scalable communication solution. It’s inexpensive, easy-to-use, offers a full suite of PBX features, and is fully integrated for CRM.
Call2Kitchen.net - The best call center for restaurants
Aspect Via Customer Engagement Center - Aspect Via is a customer engagement platform that covers all the customer service bases while taking full advantage of Amazon Web Service (AWS) cloud services and infrastructure.
CallHub - Predictive Call Center, Voice and Text Broadcasting app