Two-way SMS Communication

Question

I need to create Two-way SMS task in AWS. where I can send a message from AWS to client/User. In the response Client/User can send response in limited time. 
For Example,
If I am sending message to Multiple User.
"Hello AWS, Would you like to come for Movie ? Please response Yes for Accepted, Yes with Time for Coming for specific time.
With above message User can replay Yes or Yes 1500-1700.

The Only thing, With help of AWS Lambda I want to build this kind of messaging service.

Answer

Based on the country and regulations, you need to have an originating number and  configure two-way SMS in AWS Pinpoint: https://docs.aws.amazon.com/pinpoint/latest/userguide/settings-sms-managing.html#channels-sms-two-way-configure.

You can use AWS Pinpoint campaigns or journey or transactional API directly. References:
https://docs.aws.amazon.com/pinpoint/latest/userguide/campaigns.html
https://docs.aws.amazon.com/pinpoint/latest/userguide/journeys.html
https://docs.aws.amazon.com/pinpoint/latest/developerguide/send-messages-sms.html

All incoming replies from users are sent to a SNS topic, where you can configure Lambda to receive them and process them.  One example for your reference is here https://github.com/aws-samples/amazon-pinpoint-interactive-sms-multilingual

Two-way SMS Communication

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