Twilio Twilio is a web-service API that lets you use your existing web languages and skills to build voice and SMS applications. We focus on building a simple, powerful... Freemium Web IVR SMS API Voice Call Add a feature 25 Like
Bandwidth Communications API Platform - Easily add texting or calling to any app through http API. Send/Receive text messages, picture messages, phone calls in one line of code. Commercial Web SMS API SMS Reminders Texting Transactional SMS ... WebRTC Add a feature 3 Like
Sinch Sinch is a powerful voice and messaging SDK that lets you bring your apps to life with VoIP and WebRTC technology. Simplicity is at its core and you can get your first... Commercial Android iPhone iPad SMS API WebRTC Add a feature 1 Like
