To remove your PC Card and replace it with another, follow this step :
1. Remove the PC Card
2. Insert a different PC Card
3. Test the new card in real mode
4. Use the configuration software included with the card.
Refer to the documentation provided with the card for information about its use
If the other PC Card doesn’t work, the problem is with either its slot or you’re your computer.
To determine whether your calling card is on the list :
Click Start, point to Setting, click Control Panel, and then double-click Telephony
Click Calling Card
If your calling card is not on the list, you have to add it :
Click Start, point to Settings, click Control Panel, and then double-click Telephony
Click Calling Card
In the Calling Card dialog box, click New
Type a name for your calling card in the Create a New Calling Card Named box, click OK, and then click OK again
Type the calling card access numbers in the appropriate access number boxes
Type the calling card PIN number in the Personal ID Number (PIN Number) box, and then click OK