Twilio - Brings voice and messaging to your web and mobile applications.
Vizetto Reactiv SUITE - Create engaging interactive presentations for laptops with Reactiv SUITE s best virtual meeting platforms
Bandwidth - Bandwidth offers SIP trunking, Emergency communications, and Voice & Messaging APIs.
VoiceThread - Transforming media into collaborative spaces with video, voice, and text commenting.
Nexmo - Nexmo is a simple two way SMS API with global reach and wholesale rates
Microsoft Sway - Sway is an easy-to-use digital storytelling app for creating interactive reports, presentations, personal stories and more.