Toshiba P100/P105 User Manual
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Exploring Your Computer’s Features
Setting up for communications
5.375 x 8.375 ver 2.3
Determining the COM port
Your modem is connected to one of the computer’s COM 
(communications) ports. The default setting for the modem is 
COM3.
The following procedure is intended to support you if you 
need to either upgrade your modem or reset the port to the 
default settings.
If you are having trouble connecting through the modem, you 
may need to determine the current COM port name and 
possibly change it.
To find out which port your modem is connected to:
1
Click Start, Control Panel, Printers and Other Hardware, 
and then Phone and Modem Options.
The Phone and Modem Options Properties dialog box 
displays.
2
Fill in the Local Information text boxes and click OK.
3
Click the Modems tab.
Your modem should be listed next to one of the computer’s 
COM ports.
4
Make a note of the COM port number.
5
To verify that the modem is set up properly, select the 
modem you wish to check, and then click Properties to 
bring up the dialog box with information specific to that 
modem.
Windows XP communicates with the modem and 
displays identifying information reported by the modem. 
If Windows XP cannot communicate with the modem, it 
displays an error message. Consult the troubleshooting 
sections of your modem and operating system 
documentation.