I keep looking for the informaion on AWS SNS services of SMS. I would like to make sure the question before I request AWS account being moved out of the SMS sandbox.
I am trying to use this services on a product running on Heroku, which means I have to use the region on US East (N. Virginia)
us-east-1
. But the product users mainly live in Asia. I test it in sandbox mode, and it can receive the message.
Here comes the question: If AWS account exits SMS sandbox and try to send SMS to a new phone number, do I still need to verify the phone number first then it can receive the message?
I read those two document, but cannot ensure the services. Really appreciate any answers to help me figure out.