How to setup 56K dialup connectiong

[satimis]

Hi folks,

FC6
56K external modem - serial port connection

Just finished installation and unable to setup 56k connection.

On Network Configuration;
Modem port: Modem0 (automatically detected)
Dial mode auto

Trying to activate it prompted;

System-config-network
/sbin/ifup: configuration for Netvigator56k not found.
Usage: ifup <device name>



On Konsole;
# ifup modem0
/sbin/ifup: configuration for modem0 not found.
Usage: ifup <device name>


# ifup /dev/modem0
/sbin/ifup: configuration for /dev/modem0 not found.
Usage: ifup <device name>


However
# ls /dev/ | grep modem0
# ls /dev/ | grep modem
both no printout


Please help. TIA


B.R.
satimis