Password Reset Portal SMS Gate Not Working

Question

trying Microsoft code to enable One-Time Password with SMS Gate, no luck to make it work. Anyone can advise what's wrong of this code? 
Customer sms gateway requires POST method with 3 parameters: "password", "hp" and "smsmessage"
namespace Microsoft.IdentityManagement.Samples
    using System;
    using System.Collections.Generic;
    using System.Globalization;
    using System.Net;
    using System.Text;
    using Microsoft.IdentityManagement.SmsServiceProvider;
    using System.Web;
    using System.Security.Cryptography;
    using System.IO;
    public class SmsServiceProvider : ISmsServiceProvider
        public void SendSms(string mobileNumber,
                            string message,
                            Guid requestId,
                            Dictionary<string, object> deliveryAttributes)
            mySMSProvider.SendSms(mobileNumber, message);
    class mySMSProvider
        static string RequestURL = "http://smsgw.abc.com/smsgateway/smsforad.php";
        mySMSProvider()
        public static int SendSms(string userMobileNumber, string message)
            WebClient wc = new WebClient();
            string requestData;
            requestData = Microsoft.IdentityManagement.Samples.mySMSProvider.GetRequestData(userMobileNumber, message);
            byte[] postData = Encoding.ASCII.GetBytes(requestData);
            byte[] response = wc.UploadData(mySMSProvider.RequestURL, postData);
            string result = Encoding.ASCII.GetString(response);  // result contains the error text
            int returnValue = System.Convert.ToInt32(result.Substring(0, 6), NumberFormatInfo.InvariantInfo);
            return returnValue;
        public static string GetRequestData(string mobile, string message)
            string myrequestData;
            myrequestData = "password=" + "password123"
                 + "&hp=" + System.Web.HttpUtility.UrlEncode(mobile)
                 + "&smsmessage=" + System.Web.HttpUtility.UrlEncode(message);
            return myrequestData;
Jason

Answer 1

There is some "well known" issue if you put more than one class into the dll. Try to insert all the logic to the SmsServiceProvider class.
Borys Majewski, Identity Management Solutions Architect (Blog: IDArchitect.NET)