CorvisaOne - CorvisaOne is another cloud-based communications suite that is specially designed for companies that need features for managing inbound or outbound call centres.
XO Hosted PBX - Hosted PBX is a scalable UC solution that uses cloud technology to integrate HD voice & data services, mobility, along with advanced calling
Amp Telecom - Amp Telecom is a powerful all-in-one cloud-based business Voice Over IP and calling platform for any kind of midsize and large enterprises that comes with crystal clear calling, 24/7 reliability and can help you save more than 60% off your monthly p…
Zoiper - Cross-platform VoIP softphone dialer for SIP and IAX systems
8x8 X Series - X Series connects teams across channels and around the globe, giving you access your most critical information securely, from any location.
Sipdroid - Free and open-source SIP/VoIP Client