//-- Intent: send the voice message with voicecode of 100000 to --// //-- an existing contact list with listcode 200000 and name --// //-- the alert "My Test Alert" --// $.ajax({ type: "POST", contentType: "application/json; charset=utf-8", headers: {"SwiftAPI-Key": "12345"}, url: "http://api.v4.swiftreach.com/api/Messages/Voice/Send/MY%20Test%20Alert/100000/200000", dataType: "json" success: function(result) { // Do something with the result } }); <!-- example return value --> 123456