To connect the cable between the modem and the telephone service line:
1Plug one end of a modem cable into the modem connector on the back of the computer. This connector may be labeled with either Line or a modem connector symbol.
2Plug the other end of the cable into the telephone service line jack on the wall.
3On modems with a Telephone Line switch, make sure the switch is in position 1.
38 HP Pavilion home PC
Back of PC
2
1
Telephone 
Modem connector (optional)
Telephone cable | Modem cable |
(optional) |
|
Wall jack
Telephone (optional)
You can also connect a telephone to the other connector on the modem (optional). By connecting a telephone to the modem, you can make regular (voice) telephone calls when you are not using the modem — even if the computer is turned off.