set connection to a modem

[Ilya Kazakevich]

Hello,

ppp is used when you want connect to internet via modem. i just want to
> config my modem by AT command.
> when my ppp.conf file is empty, i can talk to my modem so this config file
> do nothing what you want talk to your modem.
>
> if i want to talk to my modem by a specific speed, which config file should
> be changed?
>
>
You use some app to talk to your modem via serial port. You may configure
speed for each program.
You use minicom to connect to the remote system manually and you set speed
via minicom config.
You use PPP to connect to the remote system and internetwork with it and
you use ppp.conf to configure speed.

If you are interested in *default* values and port configuration regardless
app you use see:
/dev/ttyuN.init
/dev/cuauN.init
/dev/ttyuN.lock
/dev/cuauN.lock

Please read http://www.freebsd.org/doc/handbook/serial.html
man sio

Ilya.