Compaq Armada 1500c - Notebook PC Reference Manual page 31

Follow these steps to connect the modem cable:
1. Connect one end of the modem cable into the RJ-11 jack on
the left side of the computer.
2. Plug the opposite end into a standard telephone wall jack.
The internal modem is configured to meet operating approval in
the country where you purchased your computer. If the modem is
used in other countries, the country selection needs to be changed
to meet the telecommunications regulations for that country.
The internal modem supports specific countries that are
included in the selection list of the country selection application.
1. Click Start £ Settings £ Control Panel £ double-click the
System icon.
2. Click the Device Manager tab.
3. Double-click the modem icon, then double-click your modem.
.