Twilio - Brings voice and messaging to your web and mobile applications.
MailClark - The Slack bot for external communications
Plivo - Plivo simplifies your customer engagement.
Alert.email - Get your important emails delivered to a Slack channel
MessageBird - Reach 7 billion phones in seconds via SMS, Chat & Voice. Try it for free and improve your communication.
OneBar - AI-powered Q&A knowledge base for Slack teams