有沒有用過語音貓的朋友。
    最近弄到一塊語音貓，在語音貓的speaker、MIC插孔上插上我的耳機和麥克風，通過超級終端可以撥出電話號碼，對方可以接聽，我可以聽到對方的講話，但是對方聽不到我的麥克風里的聲音。
    我用C# 通過TAPI3寫了一段撥號程序，可以正常撥號，對方也可以接聽，但是卻聽不到我的聲音，我可以聽到他的。和用超級終端一樣，我覺得不應該是程序的問題，應該是我的硬件設置的問題。請教有過這種應用的朋友，你們是怎么做的。
C#代碼如下：

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Text;
using System.Windows.Forms;
using TAPI3Lib;

namespace MyTAPI_CS_1
{
     public partial class Form1 : Form
    {
        public delegate void eventHandler(TAPI3Lib.CALL_STATE cs, string str);
        private TAPIClass tapiclass;
        private ITAddress[] itaddress=new ITAddress[10];
        private IEnumAddress ienumaddress;
        private ITBasicCallControl itbasiccallctrl;

        private int currentline=0;

        public Form1()
        {
            InitializeComponent();
        }

        private void Form1_Load(object sender, EventArgs e)
        {
            uint reg=0;

            tapiclass = new TAPIClass();
            tapiclass.Initialize();

            //添加TAPI事件處理
            tapiclass.ITTAPIEventNotification_Event_Event += new ITTAPIEventNotification_EventEventHandler(this.Event);
            tapiclass.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);

            groupBox1.Enabled = false;
            ienumaddress = tapiclass.EnumerateAddresses();

            for (int i = 0; i < 10; i++)
            {
                ienumaddress.Next(1, out itaddress[i], ref reg);
                if (itaddress[i] != null)
                {
                    comboBox1.Items.Add(itaddress[i].AddressName);
                }
                else
                    break;
            }


        }

        private void comboBox1_SelectedIndexChanged(object sender, EventArgs e)
        {
            int reg;
            currentline = comboBox1.SelectedIndex;
            reg=tapiclass.RegisterCallNotifications(itaddress[currentline], true, true, TapiConstants.TAPIMEDIATYPE_AUDIO, 2);
            MessageBox.Show("注冊線路的事件處理，返回值："+reg.ToString());
            groupBox1.Enabled = true;

        }

        //撥號
        private void button1_Click(object sender, EventArgs e)
        {
            itbasiccallctrl = itaddress[currentline].CreateCall(textBox1.Text, TapiConstants.LINEADDRESSTYPE_PHONENUMBER, TapiConstants.TAPIMEDIATYPE_AUDIO);
            itbasiccallctrl.Connect(false);

        }

        //掛機
        private void button2_Click(object sender, EventArgs e)
        {
            itbasiccallctrl.Disconnect(DISCONNECT_CODE.DC_NORMAL);
        }

        public void eventdispose(TAPI3Lib.CALL_STATE cs, string str)
        {
            listBox1.Items.Add(str);
        }

        public void Event(TAPI3Lib.TAPI_EVENT te, object eobj)
        {
            string str = "";
            switch (te)
            {
                case TAPI3Lib.TAPI_EVENT.TE_CALLSTATE:
                    TAPI3Lib.ITCallStateEvent itcallstateevent = (TAPI3Lib.ITCallStateEvent)eobj;
                    TAPI3Lib.ITCallInfo itcallinfo = itcallstateevent.Call;
                    switch (itcallinfo.CallState)
                    {
                        case TAPI3Lib.CALL_STATE.CS_OFFERING:
                            str = "ring";
                            Invoke(new eventHandler(eventdispose), TAPI3Lib.TAPI_EVENT.TE_CALLSTATE, str);
                            break;
                    }
                    break;
            }
        }
    }
}