Add SMS type and response codes (thanks @DJFliX)

Nexmo.Api/SMS.cs

@@ -4,6 +4,96 @@ namespace Nexmo.Api
 {
     public static class SMS
     {
+        public enum SmsType
+        {
+            text,
+            binary,
+            wappush,
+            unicode,
+            vcal,
+            vcard
+        }
+
+        public enum SmsResponseCodes
+        {
+            /// <summary>
+            /// The message was successfully accepted for delivery by Nexmo
+            /// </summary>
+            success = 0,
+            /// <summary>
+            /// You have exceeded the submission capacity allowed on this account, please back-off and retry
+            /// </summary>
+            throttled = 1,
+            /// <summary>
+            /// Your request is incomplete and missing some mandatory parameters
+            /// </summary>
+            missing_params = 2,
+            /// <summary>
+            /// The value of one or more parameters is invalid
+            /// </summary>
+            invalid_params = 3,
+            /// <summary>
+            /// The api_key / api_secret you supplied is either invalid or disabled
+            /// </summary>
+            invalid_credentials = 4,
+            /// <summary>
+            /// An error has occurred in the Nexmo platform whilst processing this message
+            /// </summary>
+            internal_error = 5,
+            /// <summary>
+            /// The Nexmo platform was unable to process this message. For example due to an un-recognized destination number prefix
+            /// </summary>
+            invalid_message = 6,
+            /// <summary>
+            /// The number you are trying to submit to is blacklisted and may not receive messages
+            /// </summary>
+            number_barred = 7,
+            /// <summary>
+            /// The api_key you supplied is for an account that has been barred from submitting messages
+            /// </summary>
+            partner_account_barred = 8,
+            /// <summary>
+            /// Your pre-pay account does not have sufficient credit to process this message
+            /// </summary>
+            partner_quota_exceeded = 9,
+            /// <summary>
+            /// This account is not provisioned for REST submission, you should use SMPP instead
+            /// </summary>
+            account_rest_not_enabled = 11,
+            /// <summary>
+            /// Applies to Binary submissions, where the length of the UDH and the message body combined exceed 140 octets
+            /// </summary>
+            message_too_long = 12,
+            /// <summary>
+            /// Message was not submitted because there was a communication failure
+            /// </summary>
+            communication_failed = 13,
+            /// <summary>
+            /// Message was not submitted due to a verification failure in the submitted signature
+            /// </summary>
+            invalid_signature = 14,
+            /// <summary>
+            /// The sender address (from parameter) was not allowed for this message. Restrictions may apply depending on the destination see our FAQs
+            /// </summary>
+            invalid_sender_address = 15,
+            /// <summary>
+            /// The ttl parameter values is invalid
+            /// </summary>
+            invalid_ttl = 16,
+            /// <summary>
+            /// Your request makes use of a facility that is not enabled on your account
+            /// </summary>
+            facility_not_allowed = 19,
+            /// <summary>
+            /// The message class value supplied was out of range (0 - 3)
+            /// </summary>
+            invalid_message_class = 20,
+            /// <summary>
+            /// The destination number is not in your pre-approved destination list (trial accounts only).
+            /// </summary>
+            non_whitelisted_destination = 29
+        }
+
         public class SMSRequest
         {
             public string from { get; set; }