Linphone - Linphone is an internet phone or Voice Over IP phone (VoIP).
Genesys Cloud - As the foundation of great customer experience, the Genesys PureCloud contact center platform empowers your business to provide excellent service across the entire customer journey.
Zoiper - Cross-platform VoIP softphone dialer for SIP and IAX systems
Five9 - Five9 provides cloud-based call center software for sales, marketing and support.
Sipdroid - Free and open-source SIP/VoIP Client
Genesys PureConnect - The Genesys PureConnect platform is an all-in-one customer experience solution that’s easy to use, flexible and customizable to your business needs.