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Moebius
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AT Commands to modem in MBIM mode?

Mon Jun 29, 2020 10:38 pm

I'm running v7b8 with a Sierra 7455 LTE card in MBIM mode without too much trouble, things are working as expected. However I would like to be able to monitor cellular information using commands like "at!gstatus?"

However, the command "/interface lte at-chat lte1 input="at!gstatus\?" returns "failure: unsupported"

Is there another method to perform this action?

At this time the only way I've found to issue such commands is to move the modem out of MBIM mode.
 
Acryli
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Re: AT Commands to modem in MBIM mode?

Thu Jul 16, 2020 8:33 pm

+1

Same problem with an EM7565.
 
summitbri
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Re: AT Commands to modem in MBIM mode?

Fri Jul 24, 2020 10:03 pm

same problem with EP06-A
 
JardinEspanol
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Re: AT Commands to modem in MBIM mode?

Tue Jul 28, 2020 1:35 am

Same problem with MC7355 in SXT R with ROS 7.1beta1.
 
leopardus2
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Re: AT Commands to modem in MBIM mode?

Tue Nov 17, 2020 2:23 pm

why is such a trivial thing unsupported?
 
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SiB
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Re: AT Commands to modem in MBIM mode?

Tue Nov 17, 2020 2:38 pm

same problem with EP06-A
EP06-A not have that command !.
Replace " as \" , ? as \?
but the ! , = , # what sometimes exist in AT commands works without any \ before them.
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SiB
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Re: AT Commands to modem in MBIM mode?

Tue Nov 17, 2020 2:42 pm

"failure: unsupported"
probably you must
  • change URC mode,
  • enable USB3.0
  • send at command to usbX and not lteX inteface
  • use latest RouterOS v7 like 7.1beta2
Some lte modules are not supported.
Example Telit LM940 start works with lte at-chat from ros7.0beta9
MTCNA + MTCRE + MTCINE | ~600 users at ~150 RouterBoards in EMEA | Telegram: @SiB_PL
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leopardus2
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Re: AT Commands to modem in MBIM mode?

Tue Nov 17, 2020 3:15 pm

In my opinion OS7 has great potential as far as USB modems go.
I have tried both a Quectel RM500Q and a Sierra Wireless EM9190 (both are 5G modems) and both have been immediately recognized and work well.
This lack of at-chat capability is serious because when using such modems there is a lot of tuning needed before committing to a configuration, and having
to move the modem out of the mikrotik device and into a cheap chinese router (which can talk to the modem just fine) is a real nuisance.

Please, PLEASE Mikrotik, fix the at-chat for modems in MBIM mode and you'll be rewarded with a lot of new customers.
 
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SiB
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Re: AT Commands to modem in MBIM mode?

Tue Nov 17, 2020 3:20 pm

leopardus2
Please, PLEASE Mikrotik, fix the at-chat for modems in MBIM mode and you'll be rewarded with a lot of new customers.
Send this to support@mikrotik.com or https://mikrotik.com/support
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leopardus2
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Re: AT Commands to modem in MBIM mode?

Tue Nov 17, 2020 4:04 pm

Done already
 
leopardus2
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Re: AT Commands to modem in MBIM mode?

Wed Dec 30, 2020 1:58 pm

I am still looking forward for a solution to this issue, which prevents me from using a non quectel modem on my RB3011.
Support replied to change the lte mode to serial and check the serial ports that should show up under /port, to find which one will work with AT command,
however the usb port that appears when I do is in inactive state:
[admin@MikroTik] > /port/print 
Flags: I - INACTIVE
Columns: NAME, CHANNELS, USED-BY, BAUD-RATE
 #     NAME     C  USED-BY         BAUD
 0     serial0  1  Serial Console  auto
 1  I  usb2     4                  9600
[admin@MikroTik] > /system serial-terminal port=usb2 channel=0
failure: port is inactive
[admin@MikroTik] > /system serial-terminal port=usb2 channel=1
failure: port is inactive
[admin@MikroTik] > /system serial-terminal port=usb2 channel=2
failure: port is inactive
[admin@MikroTik] > /system serial-terminal port=usb2 channel=3
failure: port is inactive
I did not test on the RB3011 (because that is running my entire home) but on a spare HEX S that I have.
Without a working at-chat command there is no way to use a MBIM modem with RouterOS.
 
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SiB
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Re: AT Commands to modem in MBIM mode?

Thu Dec 31, 2020 11:44 am

no response from MikroTik ? You can share that case with me ? At support portal you have a share button, use info@sibex.it .

Some person must isolate usb3.0 pings, enable usb3.0 via at and then communication start work.
I not have experience with sierra and not use that cards.
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