Receiving data from modem with MScomm

[makdu]

Hi everyone. I am trying to use MScomm in vb6 throught Modem. There are two computers , both are connected through dial up modem. I want to send a file from first computer to the other. First Computer dials second computer to make connection. I am able to get a ring message on the second computer .But it is unable to send data on modem or second computer is unable to receive data from modem.
Here is the code for sending and receiving computers
first computer

Private Sub Command1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Dial.Click 
        Dim Number$, Temp$ 
        Dim DialString$ 
        Dim Status As String 
        Dim FileName, OutBuff As String 
        Text1.Text = "Test string from App1 " 
        Number$ = InputBox$("Enter phone number:", "Number$") 
        If Number$ = "" Then Exit Sub 
        Dim T As Single 
        Dim TimeoutVal As Single 
        Temp$ = Status 
        Status = "Dialing - " + Number$ 
        DialString$ = "ATDT" + Number$ + ";" + vbCr 

        On Error Resume Next 
        If MSComm1.PortOpen = False Then 
            MSComm1.CommPort = 4 
            MSComm1.Settings = "9600,N,8,1" 
            MSComm1.PortOpen = True 
            MSComm1.RThreshold = 1 
            MSComm1.RTSEnable = True 
            MSComm1.SThreshold = 1 
             End If 

        MSComm1.Output = DialString$ 
        Do 
            ' System.Windows.Forms.Application.DoEvents() 
            Temp$ = Temp$ & MSComm1.Input 
            If InStr(Temp$, "NO DIALTONE" & vbCrLf) Then 
                End 
            End If 

        Loop Until InStr(Temp$, "OK" & vbCrLf)

I am getting an error "CTL_E_GETNOTSUPPORTED" at the last line..
In second computer, i am getting a ring, but after that nothing is happening. Code is shown below

If MSComm1.PortOpen = False Then 
MSComm1.CommPort = 6 
            MSComm1.Settings = "9600,N,8,1" 
            MSComm1.RThreshold = 1 
            MSComm1.RTSEnable = True 
            MSComm1.SThreshold = 1 
            MSComm1.InputLen = 0 
            MSComm1.InputMode = InputModeConstants.comInputModeText 
            MSComm1.PortOpen = True 
            MSComm1.DTREnable = True 
            MSComm1.Output = "ATS0=1" & vbCrLf 
                   Else 
            MsgBox("Port is already open" & MSComm1.CommPort & "Port", vbCritical, "Serial Data Logger") 
        End If

Code:

private Sub MSComm1_OnComm(ByVal eventSender As System.Object, ByVal eventArgs As System.EventArgs) Handles MSComm1.OnComm 
        Dim ErrMsg As Object 
        Dim InBuff As String 



        Select Case MSComm1.CommEvent 
            ' Handle each event or error by placing 
            ' code below each case statement 

            ' Errors 
            Case MSCommLib.CommEventConstants.comEventBreak ' A Break was received. 
                ErrMsg = "Break" 
                 
                ' These next three timeout values are no longer detected in Win32 
            Case MSCommLib.CommEventConstants.comEventCDTO ' CD (RLSD) Timeout. 
            Case MSCommLib.CommEventConstants.comEventCTSTO ' CTS Timeout.`` 
            Case MSCommLib.CommEventConstants.comEventDSRTO ' DSR Timeout. 

            Case MSCommLib.CommEventConstants.comEventFrame ' Framing Error 

                ErrMsg = "Framing" 
                           Case MSCommLib.CommEventConstants.comEventOverrun ' Data Lost. 

                ErrMsg = "Overrun" 
             
            Case MSCommLib.CommEventConstants.comEventRxOver ' Receive buffer overflow. 

                ErrMsg = "OverFlow" 
    ) 
            Case MSCommLib.CommEventConstants.comEventRxParity ' Parity Error. 

                ErrMsg = "Parity" 
                     Case MSCommLib.CommEventConstants.comEventTxFull ' Transmit buffer full. 

                ErrMsg = "TX Full" 
                 
            Case MSCommLib.CommEventConstants.comEventDCB ' Unexpected error retrieving DCB] 

                ErrMsg = "DBC" 
                
                ' Events 
            Case MSCommLib.OnCommConstants.comEvCD ' Change in the CD line. 
                If MSComm1.CDHolding = True Then 

                    Connected = True 
                Else 
                    Connected = False 
                End If 

            Case MSCommLib.OnCommConstants.comEvCTS ' Change in the CTS line. 
            Case MSCommLib.OnCommConstants.comEvDSR ' Change in the DSR line. 

                ErrMsg = "comEvDSR" 
                Call handleinbuff(ErrMsg) 
            Case MSCommLib.OnCommConstants.comEvRing ' Change in the Ring Indicator. 


            Case MSCommLib.OnCommConstants.comEvReceive ' Received RThreshold # of chars. 
                Dim strreceive As VariantType 
                         InBuff = MSComm1.Input 
                                            Call handleinbuff(InBuff) 

            Case MSCommLib.OnCommConstants.comEvSend ' There are SThreshold number of 
                ' characters in the transmit buffer. 
                Do While MSComm1.OutBufferCount > 0 
                    System.Windows.Forms.Application.DoEvents() 
                Loop 

            Case MSCommLib.OnCommConstants.comEvEOF ' An EOF character was found in ' the input stream 
        End Select 

    End Sub 
    Sub handleinbuff(ByVal inbuff As String) 
        Text1.SelectionStart = Len(Text1.Text) 

        Text1.Text = inbuff 
    End Sub

I am still confused whether the problem is in first computers code or the second computers code .. Please help
Also i am getting continuous event on MSCOMM1_onevent , Case MSCommLib.OnCommConstants.comEvSend in the dialing computer. But i am not writing anything to the mscomm1.output other than the phone number which has to be dialled. Because of this an exception is coming ( CTL_E_GETNOTSUPPORTED)