Hello misc@.

Did anybody have experience of the successful use of Subj device in OpenBSD?..
The problem is that the device attached quite normal by the system:
# dmesg | grep umsm
umsm0 at uhub2 port 2 configuration 1 interface 0 "Sierra Wireless, Incorporated
Sierra Wireless AC595U Device" rev 1.10/0.02 addr 2
ucom0 at umsm0
# usbdevs -dv
Controller /dev/usb0:
addr 1: high speed, self powered, config 1, EHCI root hub(0x0000), 
Intel(0x8086), rev 1.00
  uhub0
 port 1 powered
 port 2 powered
 port 3 powered
 port 4 powered
 port 5 powered
 port 6 powered
Controller /dev/usb1:
addr 1: full speed, self powered, config 1, UHCI root hub(0x0000), 
Intel(0x8086), rev 1.00
  uhub1
 port 1 powered
 port 2 powered
Controller /dev/usb2:
addr 1: full speed, self powered, config 1, UHCI root hub(0x0000), 
Intel(0x8086), rev 1.00
  uhub2
 port 1 powered
 port 2 addr 2: full speed, self powered, config 1, Sierra Wireless AC595U 
Device(0x0120), Sierra Wireless, Incorporated(0x1199), rev 0.02
   umsm0
Controller /dev/usb3:
addr 1: full speed, self powered, config 1, UHCI root hub(0x0000), 
Intel(0x8086), rev 1.00
  uhub3
 port 1 powered
 port 2 powered

but, after the trying to send AT commands to the device via cu(1) it is behaves
like a dumb (can't send/receive any AT command/answer from the device):
# sudo cu -l /dev/cuaU0
Connected
~
[EOT]

Anyone faced with this kind of problem? Thank you in advance for the any help.
; device was tested and work without any problems on Ubuntu Linux and Windows.

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