If you’re attempting to send an SMS and encounter the error message "An error has occurred. Please try again. Error message: The From phone number is not a valid, SMS-capable inbound phone number or shortcode for your account," it means the phone number you're using isn’t recognized as an SMS-enabled or valid sender for your account.
The Twilio phone number we’re using to send the SMS is designated for voice calls only. Let's verify that the number supports both SMS and voice capabilities according to the country-specific availability list.
Since our search function is basic and it doesn't show much information about whether or not the Twilio number has SMS/voice capabilities,
