Retrieving IMEI and IMSI numbers

In this article I am placing the code and sample to retrieve IMEI and IMSI number by using OpennetCF Tapi which is free now. http://tapi.codeplex.com/  1) Start the new Windows Mobile Project  2)  Right click on References --> Select Broswe --> Select the TapiLib.dll 3) Add the class file and name ImeiNum and place the follwing code class ImeiNum { //Import cellcore.dll [DllImport("cellcore.dll")] internal static extern int lineGetGeneralInfo(IntPtr hLine, byte[] bCache); // code to get IMEI private static string getIMEIInfo() { string IMEI;Tapi t = new Tapi(); t.Initialize(); Line _line = t.CreateLine(0, LINEMEDIAMODE.INTERACTIVEVOICE, LINECALLPRIVILEGE.MONITOR); byte[] buffer = new byte[512]; //write size BitConverter.GetBytes(512).CopyTo(buffer, 0);if (lineGetGeneralInfo(_line.hLine, buffer) != 0) { throw newSystem.ComponentModel.Win32Exception(System.Runtime.InteropServices.Marshal.GetLastWin32Error(),"TAPI Error: " + System.Runtime.InteropServices.Marshal.GetLastWin32Error().ToString("X")); } int serialsize = BitConverter.ToInt32(buffer, 36); int serialoffset = BitConverter.ToInt32(buffer, 40); IMEI = System.Text.Encoding.Unicode.GetString(buffer, serialoffset, serialsize);IMEI = IMEI.Substring(0, IMEI.IndexOf( Convert.ToChar(0))); _line.Dispose(); t.Shutdown(); return IMEI; } } 4) Add another class and name it to ImsiNum. Place the following code in this class public struct GeneralInfo { public string Manufacturer; public string Model; public string Revision; public string SerialNumber; public string SubscriberNumber; } class ImsiNum { [DllImport("cellcore.dll")]private static extern int lineGetGeneralInfo(IntPtr hLigne, byte[] lpLineGeneralInfo); public static GeneralInfo GetGeneralInfo(Line l) { GeneralInfo lgi = new GeneralInfo(); byte[] buffer = new byte[512]; BitConverter.GetBytes(512).CopyTo(buffer, 0); if (lineGetGeneralInfo(l.hLine, buffer) != 0) { throw newSystem.ComponentModel.Win32Exception(System.Runtime.InteropServices.Marshal.GetLastWin32Error(),"TAPI Error: " + System.Runtime.InteropServices.Marshal.GetLastWin32Error().ToString("X")); } int subscsize = BitConverter.ToInt32(buffer, 44); int subscoffset = BitConverter.ToInt32(buffer, 48);lgi.SubscriberNumber = System.Text. Encoding.Unicode.GetString(buffer, subscoffset, subscsize).ToString(); lgi.SubscriberNumber = lgi.SubscriberNumber.Replace("\0", ""); return lgi; } public static string GetIMSINumber() { string result = ""; try { Tapi t = new Tapi(); t.Initialize(); Line l = t.CreateLine(0, LINEMEDIAMODE.INTERACTIVEVOICE, OpenNETCF.Tapi.LINECALLPRIVILEGE.MONITOR); GeneralInfo gi = GetGeneralInfo(l); result = gi.SubscriberNumber; l.Dispose(); t.Shutdown(); } catch// (Exception ex) { result = ""; } return result; } }