I am currently not able to test the sms api.
How do I enable SMS on my developer sandbox?
Please read this post and open a dev support ticket.
I have a number registered and set up for SMS in my live account. Is there a way I can use that number in my sandbox or will I have to go through the 10DLC registration separately for a test number on my sandbox?
I don't see the Phone System > Enhanced Business SMS > 10DLC Registration menu option in my sandbox
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