I can't figure out which tty to use for my internal PCI US Robotics modem.
With OpenBSD it's cua03, and in Windows it's COM2.

I've been setting things up according to the user's guide. And the problem
comes with the "cu -p modem" part. I've tried all the ttys, but get "Device
not configured."

Here is my dmesg. Thanks.

NetBSD 1.5.2 (GENERIC) #3: Sat Aug 18 23:37:05 CEST 2001
    he@hamster.urc.uninett.no:/usr/src/sys/arch/i386/compile/GENERIC
cpu0: Intel Pentium II/Celeron (Deschutes) (686-class), 448.07 MHz
total memory = 127 MB
avail memory = 113 MB
using 1658 buffers containing 6632 KB of memory
BIOS32 rev. 0 found at 0xfd7a0
mainbus0 (root)
pci0 at mainbus0 bus 0: configuration mode 1
pci0: i/o space, memory space enabled
pchb0 at pci0 dev 0 function 0
pchb0: Intel 82443BX Host Bridge/Controller (rev. 0x03)
ppb0 at pci0 dev 1 function 0: Intel 82443BX AGP Interface (rev. 0x03)
pci1 at ppb0 bus 1
pci1: i/o space, memory space enabled
vga1 at pci1 dev 0 function 0: Nvidia Corporation RIVA TNT (rev. 0x04)
wsdisplay0 at vga1: console (80x25, vt100 emulation)
pcib0 at pci0 dev 7 function 0
pcib0: Intel 82371AB PCI-to-ISA Bridge (PIIX4) (rev. 0x02)
pciide0 at pci0 dev 7 function 1: Intel 82371AB IDE controller (PIIX4) (rev.
0x01)
pciide0: bus-master DMA support present
pciide0: primary channel wired to compatibility mode
wd0 at pciide0 channel 0 drive 0: <IBM-DTTA-371290>
wd0: drive supports 16-sector pio transfers, lba addressing
wd0: 12395 MB, 16383 cyl, 16 head, 63 sec, 512 bytes/sect x 25385472 sectors
wd0: 32-bit data port
wd0: drive supports PIO mode 4, DMA mode 2, Ultra-DMA mode 2
pciide0: primary channel interrupting at irq 14
wd0(pciide0:0:0): using PIO mode 4, Ultra-DMA mode 2 (using DMA data
transfers)
pciide0: secondary channel wired to compatibility mode
atapibus0 at pciide0 channel 1
cd0 at atapibus0 drive 0: <TOSHIBA DVD-ROM SD-M1202, 9800802085, 1020> type
5 cdrom removable
cd0: 32-bit data port
cd0: drive supports PIO mode 4, DMA mode 2
sd0 at atapibus0 drive 1: <IOMEGA  ZIP 100       ATAPI, , 14.A> type 0
direct removable
sd0: 98304 KB, 96 cyl, 64 head, 32 sec, 512 bytes/sect x 196608 sectors
sd0: 32-bit data port
pciide0: secondary channel interrupting at irq 15
cd0(pciide0:1:0): using PIO mode 4, DMA mode 2 (using DMA data transfers)
sd0(pciide0:1:1): using PIO mode 3
uhci0 at pci0 dev 7 function 2: Intel 82371AB USB Host Controller (PIIX4)
(rev. 0x01)
uhci0: interrupting at irq 9
usb0 at uhci0: USB revision 1.0
uhub0 at usb0
uhub0: Intel UHCI root hub, class 9/0, rev 1.00/1.00, addr 1
uhub0: 2 ports with 2 removable, self powered
Intel 82371AB Power Management Controller (PIIX4) (miscellaneous bridge,
revision 0x02) at pci0 dev 7 function 3 not configured
Zoran Corporation Video Controller (video multimedia, revision 0x03) at pci0
dev 13 function 0 not configured
eap0 at pci0 dev 15 function 0: Ensoniq CT5880 CT5880C (rev. 0x02)
eap0: interrupting at irq 5
eap0: SigmaTel STAC9721/23 codec; 18 bit DAC, 18 bit ADC, Rockwell 3D
audio0 at eap0: full duplex, mmap, independent
midi0 at eap0: AudioPCI MIDI UART
isa0 at pcib0
com0 at isa0 port 0x3f8-0x3ff irq 4: ns16550a, working fifo
pckbc0 at isa0 port 0x60-0x64
pckbd0 at pckbc0 (kbd slot)
pckbc0: using irq 1 for kbd slot
wskbd0 at pckbd0: console keyboard, using wsdisplay0
pmsi0 at pckbc0 (aux slot)
pckbc0: using irq 12 for aux slot
wsmouse0 at pmsi0 mux 0
lpt0 at isa0 port 0x378-0x37b irq 7
pcppi0 at isa0 port 0x61
midi1 at pcppi0: PC speaker
sysbeep0 at pcppi0
isapnp0 at isa0 port 0x279: ISA Plug 'n Play device support
npx0 at isa0 port 0xf0-0xff: using exception 16
fdc0 at isa0 port 0x3f0-0x3f7 irq 6 drq 2
fd0 at fdc0 drive 0: 1.44MB, 80 cyl, 2 head, 18 sec
isapnp0: read port 0x203
isapnp0: <U.S. Robotics 56K Voice INT, USR3090, , > port 0x2f8/8 irq 3 not
configured
biomask ef4d netmask ef4d ttymask ffcf
sd0: no disk label
boot device: wd0
root on wd0a dumps on wd0b
root file system type: ffs
wsdisplay0: screen 1 added (80x25, vt100 emulation)
wsdisplay0: screen 2 added (80x25, vt100 emulation)
wsdisplay0: screen 3 added (80x25, vt100 emulation)
wsdisplay0: screen 4 added (80x25, vt100 emulation)
wsmux1: connecting to wsdisplay0