I have set up a private app that I'm testing in the sandbox. While testing, I suddenly get the following message when I dial the sandbox phone number:
"The number you dialed is not in service at this time. Thank you for calling. Goodbye"
Is there a limit to how many times we can call our sandbox account per day? I am able to send text messages to the number and I get them via the subscription API programatically.
I had just figured out how to subscribe to events and was making great progress on our internal app when this happened.