Twilio - Brings voice and messaging to your web and mobile applications.
Qminder - Qminder works the way it sounds: It helps a company mind its queues.
Plivo - Plivo simplifies your customer engagement.
Zenlist - Google ads for classifieds
MessageBird - Reach 7 billion phones in seconds via SMS, Chat & Voice. Try it for free and improve your communication.
Buzzerr - Make queue management effortless with Buzzerr