How to respond to SMS from AWS SNS

Question

When I receive an SMS from a friend's mobile phone, I can respond to it (as you would expect). When I receive an SMS from my application, via AWS SNS, I can not respond. Why is that? And can I configure a response phone number?

Answer 1

There is no in-bound SMS capability with Amazon Simple Notification Service. It is only for outbound messaging.

However, Amazon Pinpoint can respond to SMS messages, typically as part of a marketing campaign.

See: Amazon Pinpoint Launches Two-Way Text Messaging | AWS News Blog