I'm wondering if there's a way to control the timeout period for sms_send via HTTP for the scenario where there's an invalid phone number. Everything works great otherwise, i.e. when the phone number is valid, sms_send returns within 3 seconds. If the phone number is invalid, the timeout appears to be 4 minutes.
FYI...when using the send from the web page, the UI returns very quickly if the phone number is invalid.
Also, by invalid, I mean a phone number that has been disconnected, so it used to be a valid phone number.