Thank you Spoiler and Glitchpc
Telephone company also says I should unplug modem
during thunderstorms. But clouds gather at night and by morning
the modem is nonfunctional.
This DSL modem is property of Telephone company given to me on
monthly rental.It takes nearly 2 weeks to get a damaged modem replaced,
i.e after a lot of arguments and haggling .
The setup program in CD is not asking me to enter my details
(phone numb,name and password)
It is configuring automatically by contacting the Telephone exchange,it seems.
Thank you for your suggestions.
I learned a lot about this instrument.
Thank you.
Prasad