Question

我正在用C＃为陆线电话编写TAPI 3.0应用程序。我的目标是接收和录制电话。到目前为止，在我的Code Code Everything在第一次调用时工作正常，所有事件都在触发。

但遗憾的是，首次通话后，TAPI完全忽略了所有后续通话，

在我重新启动应用程序之前没有事件触发。

我在google搜索时发现的一件事，如果我重置Tapi实例，它可以解决我的问题，

有谁能说出如何重置Tapi对象？

这是我的代码

void initializetapi3()
{
    try
    {
        tobj = new TAPIClass();
        tobj.Initialize();
        IEnumAddress ea=tobj.EnumerateAddresses();
        ITAddress ln;
        uint arg3=0;
        lines=0;

        cn=new callnotification();
        cn.addtolist=new callnotification.listshow(this.status);
        tobj.ITTAPIEventNotification_Event_Event+= new TAPI3Lib.ITTAPIEventNotification_EventEventHandler(cn.Event);
        tobj.EventFilter=(int)(TAPI_EVENT.TE_CALLNOTIFICATION|
            TAPI_EVENT.TE_DIGITEVENT|
            TAPI_EVENT.TE_PHONEEVENT|
            TAPI_EVENT.TE_CALLSTATE|
            TAPI_EVENT.TE_GENERATEEVENT|
            TAPI_EVENT.TE_GATHERDIGITS|
            TAPI_EVENT.TE_REQUEST|TAPI_EVENT.TE_CALLINFOCHANGE);


        for(int i=0;i<10;i++)
        {
            ea.Next(1,out ln,ref arg3);
            ia[i]=ln;
            if(ln!=null)
            {
                comboBox1.Items.Add(ia[i].AddressName);
                lines++;
            }
            else
                break;
        }


    }
    catch(Exception e)
    {
        MessageBox.Show(e.ToString());
    }
}

delegate void valueDelegate(string value);

public void status(string str)
{
    if (textBox1.InvokeRequired)
    {
        textBox1.Invoke(new valueDelegate(status), str);
    }
    else
    {
        textBox1.Text = str;
    } 
}

public void Event(TAPI3Lib.TAPI_EVENT te, object eobj)
{
    switch (te)
    {
        case TAPI3Lib.TAPI_EVENT.TE_CALLNOTIFICATION:
            status("call notification event has occured");
            break;
        case TAPI3Lib.TAPI_EVENT.TE_PHONEEVENT:
            status("A phone event!");
            break;
        case TAPI3Lib.TAPI_EVENT.TE_CALLSTATE:
            TAPI3Lib.ITCallStateEvent a = (TAPI3Lib.ITCallStateEvent)eobj;
            TAPI3Lib.ITCallInfo b = a.Call;
            switch (b.CallState)
            {
                case TAPI3Lib.CALL_STATE.CS_INPROGRESS:

                   status("dialing");
                    break;
                case TAPI3Lib.CALL_STATE.CS_CONNECTED:
                     status("Connected");
                    break;
                case TAPI3Lib.CALL_STATE.CS_DISCONNECTED:
                    status("Disconnected");
                    break;
                case TAPI3Lib.CALL_STATE.CS_OFFERING:
                    status("A party wants to communicate with you!");
                    break;
                case TAPI3Lib.CALL_STATE.CS_IDLE:
                    status("Call is created!");
                    break;
            }
            break;
    }
}

Answer 1

这对你来说很好....：

Private void initializetapi()
{
    try
    {
        tobj = new TAPIClass();
        tobj.Initialize();
        IEnumAddress ea=tobj.EnumerateAddresses();
        ITAddress ln;
        uint arg3=0;
        lines=0;
        cn=new callnotification();
        cn.addtolist=new callnotification.listshow(this.status);
        tobj.ITTAPIEventNotification_Event_Event+= new TAPI3Lib.ITTAPIEventNotification_EventEventHandler(cn.Event);
        tobj.EventFilter=(int)(TAPI_EVENT.TE_CALLNOTIFICATION|
            TAPI_EVENT.TE_DIGITEVENT|
            TAPI_EVENT.TE_PHONEEVENT|
            TAPI_EVENT.TE_CALLSTATE|
            TAPI_EVENT.TE_GENERATEEVENT|
            TAPI_EVENT.TE_GATHERDIGITS|
            TAPI_EVENT.TE_REQUEST|TAPI_EVENT.TE_CALLINFOCHANGE);


        for(int i=0;i<10;i++)
        {
            ea.Next(1,out ln,ref arg3);
            ia[i]=ln;
            if(ln!=null)
            {
                comboBox1.Items.Add(ia[i].AddressName);
                lines++;
            }
            else
                break;
        }


    }
    catch(Exception e)
    {
        MessageBox.Show(e.ToString());
    }
}

delegate void valueDelegate(string value);

public void status(string str)
{
    if (textBox1.InvokeRequired)
    {
        textBox1.Invoke(new valueDelegate(status), str);
    }
    else
    {
        textBox1.Text = str;
    } 
}

public void Event(TAPI3Lib.TAPI_EVENT te, object eobj)
{
    switch (te)
    {
        case TAPI3Lib.TAPI_EVENT.TE_CALLNOTIFICATION:
        var cn = te as TAPI3Lib.ITCallNotificationEvent;
        int counter = 0;
        while (cn.Call.CallState == TAPI3Lib.CALL_STATE.CS_IDLE && counter++ < 2)
        {
            System.Threading.Thread.Sleep(1000);
        }
            status("call notification event has occured");
            break;
        case TAPI3Lib.TAPI_EVENT.TE_PHONEEVENT:
            status("A phone event!");
            break;
        case TAPI3Lib.TAPI_EVENT.TE_CALLSTATE:
            TAPI3Lib.ITCallStateEvent a = (TAPI3Lib.ITCallStateEvent)eobj;
            TAPI3Lib.ITCallInfo b = a.Call;
            switch (b.CallState)
            {
                case TAPI3Lib.CALL_STATE.CS_INPROGRESS:

                   status("dialing");
                    break;
                case TAPI3Lib.CALL_STATE.CS_CONNECTED:
                     status("Connected");
                    break;
                case TAPI3Lib.CALL_STATE.CS_DISCONNECTED:
                    status("Disconnected");
                    break;
                case TAPI3Lib.CALL_STATE.CS_OFFERING:
                    status("A party wants to communicate with you!");
                    break;
                case TAPI3Lib.CALL_STATE.CS_IDLE:
                    status("Call is created!");
                    break;
            }
            break;
    }
}

这是因为在第一次呼叫时你的呼叫状态是空闲的，持续时间不到几毫秒。

Answer 2

您是否尝试过致电：

tobj.Shutdown();
initializetapi3();

收到TAPI3Lib.CALL_STATE.CS_DISCONNECTED事件后（或任何事件发生后）？所以，例如：

case TAPI3Lib.CALL_STATE.CS_DISCONNECTED:
    status("Disconnected");
    tobj.Shutdown();
    initializetapi3();
    break;

Answer 3

解决方案是等到tapi callstate断开连接事件，并且一旦发生这种情况：

a）UnRegisterDeviceForEvents与disconnect事件关联的设备地址，然后

b）RegisterCallNotifications与断开连接事件关联的设备地址

Answer 4

对于这个问题，我使用了由Julmar编写的Tapi的托管C＃包装器，可以是downloaded，通过使用此样本，传入呼叫也可以以.wav格式重新收录

    TPhone tphone;
    TTapi tobj;
    TTerminal recordTerminal;
    TCall CurrCall;


    void InitializeTapi()
    {
        tobj = new TTapi();
        tobj.Initialize();

        tobj.TE_CALLNOTIFICATION += new System.EventHandler<JulMar.Tapi3.TapiCallNotificationEventArgs>(this.OnNewCall);
        tobj.TE_CALLSTATE += new System.EventHandler<JulMar.Tapi3.TapiCallStateEventArgs>(this.OnCallState);       
        tobj.TE_CALLINFOCHANGE += tobj_TE_CALLINFOCHANGE;


        foreach (TPhone tp in tobj.Phones)
        {
            tphone = tp;
            tphone.Open(PHONE_PRIVILEGE.PP_OWNER);

        }


        foreach (TAddress addr in tobj.Addresses)
        {
            if (addr.QueryMediaType(TAPIMEDIATYPES.AUDIO))
            {
                try
                {
                    addr.Open(TAPIMEDIATYPES.AUDIO);
                }
                catch (TapiException ex)
                {
                    if (ex.ErrorCode == unchecked((int)0x80040004))
                    {
                        try
                        {
                            addr.Open(TAPIMEDIATYPES.DATAMODEM);

                        }
                        catch (Exception ex2)
                        {
                        }
                    }
                }
            }
        }
    }




    void tobj_TE_CALLINFOCHANGE(object sender, TapiCallInfoChangeEventArgs e)
    {
        try
        {

            CurrCall = e.Call;
            txtCallerId.Text = e.Call.get_CallInfo(CALLINFO_STRING.CIS_CALLERIDNUMBER).ToString();
            objCallLog.CallerID = txtCallerId.Text;

            Task.Factory.StartNew(() => AnswerCall());               


        }
        catch (Exception ex)
        {

        }
    }

    void OnNewCall(object sender, TapiCallNotificationEventArgs e)
    {
        CurrCall = e.Call;
    }

    void OnCallState(object sender, EventArgs E)
    {
        try
        {
            TapiCallStateEventArgs e = E as TapiCallStateEventArgs;
            CurrCall = e.Call;


            TapiPhoneEventArgs ev = E as TapiPhoneEventArgs;

            switch (e.State)
            {

                case CALL_STATE.CS_OFFERING:

                    break;

                case CALL_STATE.CS_CONNECTED:


                    break;

                case CALL_STATE.CS_DISCONNECTED:

                    try
                    {
                        if (recordTerminal != null)
                            recordTerminal.Stop();
                        recordTerminal = null;

                        CurrCall.Dispose();

                    }
                    catch (Exception ex)
                    {
                    }
                    finally
                    {
                        CurrCall = null;
                    }



                    break;
            }


        }
        catch (Exception ex)
        {

        }
    }

    void OnCallChangeEvent(object sender, TapiCallInfoChangeEventArgs e)
    {
        CurrCall = e.Call;
    }



private void AnswerCall()
    {
        try
        {
            lock (lockAnswer)
            {
                if (CallStat == CallState.Offering)
                {
                    CurrCall.Answer();
                    RecordConversation();
                }
                else
                {
                }
            }
        }
        catch (Exception ex)
        {
        }
    }

     void RecordConversation()
    {


        if (CurrCall != null)
        {
            try
            {
                recordTerminal = CurrCall.RequestTerminal(
                TTerminal.FileRecordingTerminal,
                TAPIMEDIATYPES.MULTITRACK, TERMINAL_DIRECTION.TD_RENDER);
                if (recordTerminal != null)
                {
                    recordTerminal.RecordFileName = "FileName.wav";
                    CurrCall.SelectTerminalOnCall(recordTerminal);
                    recordTerminal.Start();
                }
                else
                {
                    MessageBox.Show("Error in recording file.");
                }
            }
            catch (TapiException ex)
            {
                MessageBox.Show(ex.ToString());
            }

        }

    }

第一次通话后，Tapi 3和C＃no事件触发

4 个答案: