Plivo
Plivo enables businesses to add SMS, Voice capability into their apps.
https://plivo.com
Plivo is a cloud based API platform that enables businesses to easily build and integrate voice and SMS capabilities into their applications and workflows. Plivo provides connectivity across 190+ countries and has direct relationships with over 1600 carrier networks globally. Whether you're looking to add voice and SMS capabilities to your website, mobile app, or business workflow, Plivo has the tools and resources you need to get started.