O Modem configured for DCD always high-The modem should be reconfigured to have DCD high only on CD.1 This is usually done with the &C1 modem command (refer to Figure 16-1), but check your modem documentation for the exact syntax for your modem. O Cabling problems-If your connector uses DB-25 pin 6 and has no pin 8, you must move the pin from 6to8 or get the appropriate connector. Use the show users exec command and use the clear line privileged exec command to stop the session if desired. Configure the access server or router with the modem inout line configuration command. Modem control is not configured on the access server or router.If the modem state is Ready instead of Idle, there are three possibilities: Output of any other kind generally indicates a problem. These are the proper modem states for connections between an access server or router and a modem (when there is no incoming call). Table 16-1: Modem and Modem Hardware States in show line Output Table 16-1 shows typical Modem state and Modem hardware state strings from the output of the show line command and explains the meaning of each state. In certain cases, the indications for signal states will be shown in the Modem state field instead. Note The Modem hardware state field does not appear in the show line output for every platform. When connectivity problems occur, important output appears in the Modem state and the Modem hardware state fields. Figure 16-2 shows the output from the show line command. The output from the show line line-number exec command is useful when troubleshooting a modem-to-access server or router connection.

Cisco Serial Dcd Dsr Dtr Rts Cts