What Is an SMS Gateway? How It Works and How to Choose One

An SMS gateway routes messages from your app to mobile networks and reports back on delivery. Learn how SMSCs, aggregators and routes work, and what to check before you choose a provider.

Two-Way SMS: Surveys, Polls, Autoresponders and Chatbots

How customers reply to your texts and how replies reach your app, with a webhook code example and practical designs for surveys, polls, keywords and SMS chatbots.