astTECS Call Center Dialer - *astTECS call center dialer is an open source call center solution for outbound & inbound processes. Featuring Predictive dialer, and auto dialer to enhance the performance.
StataPile - Analyze every call to identify operational or service-based issues before you lose customers, automate coaching for all your agents, and gain insight into not only how many sales you receive, but also how many sales you lose—and why.
Loway.ch QueueMetrics - Asterisk Call Center Solutions - Loway provides a selection of the most advanced call center and contact center solutions for the Asterisk PBX.
Dialpad - Switch is a cloud-based phone system built for Google Apps users.
Aheeva - The Omnibrand, Omnichannel, Omnilocation Contact Center Solution
CyTrack - Customer experience technology to communicate with customers in any way they choose, connecting them to the right person with accurate information to hand