Can not connect to external modem

[Marcos Vinicius Buzo]

I Am having troubles to set up an external serial modem on FreeBSD 6.2.

Here is my dmesg:

sio0: <16550A-compatible COM port> port 0x3f8-0x3ff irq 4 flags 0x10 on acpi0
sio0: type 16550A

When I run the following command, the console freezes and I can not
type anything:

ironman# tip -v com1
Stale lock on cuad0 PID=70824... overriding.
connected


Any sugestions ?

Thanks in advance