Note that for each case, you can select either the simplest form of the URL (containing only your username) or the one including the id_string of the form.
            	You would use it when your SMS Setup/Provider is used for only one form.
            	
            		Use the Generic SMS API to write your own wrapper around Formhub.
            		
            			Single SMS Submission
[GET] /joannachan/sms_submission
							[GET] /joannachan/forms/myForm/sms_submission
            				Params: {"identity": "SENDER PHONE NUMBER", "text": "TEXT MESSAGE"}
            				Returns: {"status": "STATUS", "message": "MESSAGE", "id": "ID"}
            			Multiple SMS Submissions at once
[POST] /joannachan/sms_multiple_submissions
            				[POST] /joannachan/forms/myForm/sms_multiple_submissions
            				Params: {"messages": [{"identity": "SENDER PHONE NUMBER", "text": "TEXT MESSAGE"}, ]
            				Returns: [{"status": "STATUS", "message": "MESSAGE", "id": "ID"}, ]
            		
STATUS: One of ACCEPTED, REJECTED, PARSING_FAILED
            		   MESSAGE: Either an error or success message. Suitable for end user.
            		   ID: Only if successful. A unique ID of the submission.