Google Voice - Google Voice gives you one number for all your phones, voicemail organized in an email format, free...
AloTech - Worlds 1st Google Powered Cloud Call Center. CRM/ERP Integrations, CTI, ACD, IVR, DIALER.
Mitel - Business Communications and Collaboration
Kunnect - Kunnect's hosted call center provides an affordable and easy to use predictive dialer and CRM for only $125/mth.
VoIP.ms - VoIP.ms is a VoIP origination and termination tool.
Aavaz.biz - Aavaz Telemarketing Software is created to serve small businesses design and launch efficient calling campaigns, free from the traditional barriers of expensive and technological complexity.