Modem Is Not Detected In Windows 98

hi,
i have a Sony Vaio PCV-70 ,installed windows 98. but there is problem while connecting Intel DSVD modem.it is not detecting in my computer.when i tried this modem with another computer it is detecting.
If I try a manual install I get a "your modem has been set up
successfully" but when I try to connect to the internet the dial up
connection says it "could not detect modem".
I must be missing the obvious. Any help greatly appreciated.

hi,
This problem occurs because the Intel DSVD modem uses two communications (COM) ports. If both COM1 and COM2 ports are enabled, the Intel DSVD modem is configured for COM3 and COM5. This results in Windows 98 being unable to detect the modem.

follow this step to slove the problem:

Step1 :

Please go to Control Panel -> System -> Hardware -> Device Manager to check whether the modem is recognized in Windows and if there is any Question Mark (?), Red cross (X) or Admiration Mark (!)

Step2 :

Make sure that the modem line is connected to a RJ-11 phone jack and not to a RJ-45 network port

Step3 :

Please connect the modem line directly to an outlet on the wall.

Step4 :

Please use a telephone line to connect a telephone to make sure the phone line is functioning

Step5 :

Please go to Start -> Programs -> Accessories -> Communication -> Connection Wizard to create a new dial-up network. Double click on the icon and enter the Master Volume Control and make sure that no leveler is set at "mute" status and the volume is leveled at high level. Then apply dial-up connection to check whether a dialing tone can be heard.

Step6 :

Please remove the original driver and install the latest one.

Step7 :

Please update to latest BIOS.