Phone carrier has blocked this message

Question

Hi,

I am facing issues when sending SMS via local route in India. Below are the steps that has been followed.

1. DLT registration completed with Jio and created a unique headername
2. Raised a request to AWS to register the same as senderID.

I am building a mobile app and the purpose of this is only OTP alone. Before senderID registration we were using the international route for SMS and it was working. The moment, ticket for local senderID was registered, we are getting an error in the logs as "“Phone carrier has blocked this message”. I have mailed Jio DLT on the error asking for support.

Is there any other setup missing from my side? Any guidance / inputs given will be appreciated.

Thanks,
Dhyanesh

Answer

As you have mentioned that you are building a mobile app, whether the OTP are sent via AWS SDK ? If yes, Kindly check the MessageAttributes parameter where you will be passing the SenderID, EntityID & TemplateID are in correct format.

Reference - https://docs.aws.amazon.com/sns/latest/dg/sms_publish-to-phone.html#sms_publish_sdk

Phone carrier has blocked this message

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