Tragofone - White-label VoIP Softphone with WebRTC and Auto-provisioning
Nexmo - Nexmo is a simple two way SMS API with global reach and wholesale rates
PhonerLite - PhonerLite enables your PC to use it for internet telephony (VoIP , Voice over IP, SIP).
MessageBird - Reach 7 billion phones in seconds via SMS, Chat & Voice. Try it for free and improve your communication.
Lingo - Empower Creation and Ensure Brand Consistency. Build and Share libraries of visual assets with your entire team — all from your desktop.
Plivo - Plivo simplifies your customer engagement.