Unimus - Unimus is a Network Automation and Configuration management (NCM) solution designed for fast deployment network-wide and ease of use. Unimus does not require learning any abstraction or templating languages, and does not require any coding skills.
Nexmo - Nexmo is a simple two way SMS API with global reach and wholesale rates
GenieACS - A fast and lightweight TR-069 Auto Configuration Server (ACS)
MessageBird - Reach 7 billion phones in seconds via SMS, Chat & Voice. Try it for free and improve your communication.
Oxidized - configuration backup software (IOS, JunOS) - silly attempt at rancid
Plivo - Plivo simplifies your customer engagement.