I have known sms77 for a very long time now and have used it in various projects and companies when it comes to reliably sending SMS. We use sms77 mainly for verification purposes as well as for transactional messaging. In every respect I can say: sms77 just delivers.
Business SMS Gateway
Professional solutions for your company to send and receive SMS.
Online, via API, by email or directly in your app.
Easy. Fast. Reliable.