How to solve Auto disconnect of Dial-Up USB Phone Modem?

When your dial Modem automatically disconnect. And shown below ERROR message.
To solve the auto disconnect problem, please follow the below procedure:

Click on Start menu and then Run and then type the command called regedit.exe (Registry editor).
Navigate to HKEY_LOCAL_MACHINE\System\
CurrentControlSet\Services\NetBT\Parameters and on the right side,
double-click TransportBindName - press delete and give it an empty value.
Also go to HKEY_LOCAL_MACHINE\Software\Microsoft\OLE and change the value of EnableDCOM from Y to the value N.
That's all.
This guideline is only for Windows XP (SP2) & Single User.