Nexmo - Nexmo is a simple two way SMS API with global reach and wholesale rates
Instadesk - Construct a "human-machine collaboration" intelligent platform to help enterprises upgrade their intelligence.
MessageBird - Reach 7 billion phones in seconds via SMS, Chat & Voice. Try it for free and improve your communication.
Aspect Prophecy - Aspect Prophecy is a powerful, entirely standards-based platform for speech, IVR, and SIP VoIP...
Plivo - Plivo simplifies your customer engagement.
Genesys - Genesys provides omnichannel customer experience and contact center solutions in the cloud and on-premises.