@jimp:
The error in the original post mentioned cd1, that is likely what the USB modem presents itself as. If it shows cd1 in the console/system log, use cd1 in the command and not cd0.
Some of those, when issued an 'eject' command, will switch to modem mode.
i removed it in the meantime. :-X
camcontrol eject cd1
camcontrol: cam_lookup_pass: CAMGETPASSTHRU ioctl failed
cam_lookup_pass: No such file or directory
cam_lookup_pass: either the pass driver isn't in your kernel
cam_lookup_pass: or cd1 doesn't exist
cu -s 115200 -l cuaU0.0 Connected
AT+CSQ
+CSQ: 4,99
OK
AT+COPS?
+COPS: 0,2,"26207",2
OK
~
[EOT]
but still no connection :/