3Com ISDN Modem manual Use the Space Bar to select the 3C882 Isdn modem’s COM port

D-2 APPENDIX D: CONFIGURATION USING DOS

The configuration program launches and then the Port Settings screen appears. To move the cursor around the screen, use the [Up Arrow] and [Down Arrow] keys. To select a parameter, use the [Space Bar].

4Use the [Space Bar] to select the 3C882 ISDN modem’s COM port.

When you select the port, a default standard interrupt (IRQ) associated with that port is automatically chosen.

5Press [F10] to connect to the 3C882 ISDN modem via the chosen COM port.

The Configuration screen appears.

6Select the ISDN switch type.

Your telephone company can provide this information.

7In the Phone #1 field, enter the telephone number to which your ISDN modem is connected.

8Enter the corresponding Service Profile Identifier (SPID) in the SPID #1 field for the telephone number you entered in the previous step.

You should have received this SPID from your telephone company.

9If you have a second telephone number associated with your ISDN telephone line (some telephone companies require two), enter the number and corresponding SPID in the Phone #2 and SPID #2 fields.

10Use the [Space Bar] to select (enable) or unselect (disable) the MLPPP Enable box.

Multilink PPP combines the ISDN B channels, creating a virtual single digital connection of up to 128 Kbps. Note that the destination you are dialing must also support Multilink PPP, or the dual-channel link will not occur and you will get a single B channel connection.