Hi Everybody,
I've started to learn TAPI and I'm trying to dial to a phone
(eventually I wan't to send a voice message to a phone, but right now I
can't even dial properly).
I'm using C# & visual studio 2003,and I imported the TAPI3 com object
(TAPI3Lib) into my project.

This is the code I use to dial:

namespace test_TAPI3
{
    public class dummy
    {
        public dummy()
        {
        }

        TAPI3Lib.TAPI tapi=null;
        //string reqID=null;

        public void dial(string num) {
            try {
                tapi=new TAPI3Lib.TAPIClass();
                tapi.Initialize();
                object x=tapi.Addresses;
                TAPI3Lib.ITCollection col=tapi.Addresses as TAPI3Lib.ITCollection;

                TAPI3Lib.ITAddress _addr=null;
                foreach(TAPI3Lib.ITAddress addr in col) {
                    //MessageBox.Show(addr.AddressName);
                    if (addr.AddressName.IndexOf("ESS")!=-1) {
                        _addr=addr;
                        break;
                    }
                }

                tapi.Event+=new
TAPI3Lib.ITTAPIDispatchEventNotification_EventEventHandler(eventH);
                tapi.EventFilter=(int)TAPI3Lib.TAPI_EVENT.TE_CALLSTATE;

                TAPI3Lib.ITBasicCallControl call=
_addr.CreateCall(num,TAPI3Lib.TapiConstants.LINEADDRESSTYPE_PHONENUMBER,TAPI3Lib.TapiConstants.TAPIMEDIATYPE_AUDIO);

                call.Connect(false);

                while (true) {
                    Application.DoEvents();
                    TAPI3Lib.ITCallInfo cinfo=call as TAPI3Lib.ITCallInfo ;
                    if (cinfo!=null) {
                        if (cinfo.CallState==TAPI3Lib.CALL_STATE.CS_DISCONNECTED) {
                            break;
                        }
                    }
                    System.Threading.Thread.Sleep(10);
                }
                if (call!=null) {
                    call.Disconnect(TAPI3Lib.DISCONNECT_CODE.DC_NORMAL);
                }

            } catch (Exception ex) {
                MessageBox.Show(ex.ToString());
            } finally {
                if (tapi!=null) {
                    tapi.Shutdown();
                    tapi=null;
                }
            }
        }

        public void eventH( TAPI3Lib.TAPI_EVENT ev, object o) {
            TAPI3Lib.ITCallStateEvent e=o as TAPI3Lib.ITCallStateEvent;
            if (e!=null) {
                MessageBox.Show(string.Format("{0}:{1}:{2}",ev,e.State,e.Cause));
            }
        }

    }
}

What happens is that the program DOES dial the phone.
However, there is something strange with the CallState property of the call
object.
When I call the phone I get event with:
    e.State=CS_INPROGRESS
(and the phone start ringing)
And then, BEFORE I pick up the phone I get another event with:
    e.State=CS_CONNECTED
When I answer the phone and put down the handset, I don't get any event
and the call CallState stays CS_CONNECTED.
What I'm I doing wrong?

Thanks
Nadav