<sect1 id="configurations-ppp-installingmodem">

    <title>Installing Modem Device</title>

    <para>

        The modem device installation consists on attacthing the modem

        hardware both to the computer and the telephone line. To

        connect the modem to your computer, you need to connect the

        serial or USB cable that comes from the modem hardware to the

        appropriate input on your computer. To connect the modem to

        the telephone line system, you need to unplug the cable that

        connects your phone device and plug it on the modem device,

        specifically in the port reserved for data transmission.

        Later, using a similar cable, you could connect your phone

        device to the modem's phone port, so you be able of realizing

        phone calls when no data transmition take place, as well.

    </para>

    <para>

        To be on the safe side, do all the installation with the

        computer turned off. Then, when everthing has been put in

        place, turn it on. Once the system is up, you can verify the

        modem hardware using either the <command>lsusb</command> or

        <command>lspci</command> commands. For example, if you are

        using an USB modem like that one we mentioned before, run the

        following command:

    </para>

    <screen>sudo /sbin/lsusb</screen>

    <para>

        and you should get an output similar to the following:

    </para>

<screen>

Bus 003 Device 001: ID 0000:0000  

Bus 001 Device 001: ID 0000:0000  

Bus 001 Device 002: ID 058f:6366 Alcor Micro Corp. Multi Flash Reader

Bus 002 Device 001: ID 0000:0000  

Bus 005 Device 003: ID 06e0:f104 Multi-Tech Systems, Inc.

MT5634ZBA-USB MultiModemUSB (new firmware)

Bus 005 Device 001: ID 0000:0000  

Bus 005 Device 002: ID 046d:c018 Logitech, Inc. Optical Wheel Mouse

Bus 004 Device 001: ID 0000:0000 

</screen>

    <para>

        The relevant line here is that mentioning the existence of a

        Multi-Tech System, Inc. MT5634ZBA-USB MultiModemUSB (new

        firmware) device.

    </para>

    <para>

        At this point, your computer should be able of responding to

        incoming calls but cannot realize outgoing calls, yet.  To

        administer the way incoming calls are attended in this

        computer, read 

        />. On the other hand, to realize outgoing calls from this

        computer, you need to specify the server information you want

        to establish connection to, as described in 

        linkend="configurations-ppp-modem-client" />.

    </para>

</sect1>