ussd does not work

[Akimov Maxim]

Hi, There. I have next problem:

[omv at omv-g99 ~]$ sudo mmcli -m 0 status
   --------------------------------
   General  |                 path: /org/freedesktop/ModemManager1/Modem/0
            |            device id: 0e121434097bac05a854b0630a18c32fc2fdd61e
   --------------------------------
   Hardware |         manufacturer: MTK1
            |                model: MTK2
            |    firmware revision: MOLY.LR13.R2.MP.V88.P2, 2023/05/08 09:41
            |            supported: gsm-umts, lte
            |              current: gsm-umts, lte
            |         equipment id: 866880020011522
   --------------------------------
   System   |               device: /virtual/1
            |              drivers: virtual
            |               plugin: mtk
            |         primary port: radio/pttycmd2
            |                ports: radio/pttycmd2 (at), radio/pttycmd4 
(at),
            |                       radio/pttynoti (at)
   --------------------------------
   Status   |       unlock retries: sim-pin (3), sim-puk (10), sim-pin2 
(3), sim-puk2 (10)
            |                state: connected
            |          power state: on
            |          access tech: lte
            |       signal quality: 40% (recent)
   --------------------------------
   Modes    |            supported: allowed: 2g; preferred: none
            |                       allowed: 3g; preferred: none
            |                       allowed: 2g, 3g; preferred: none
            |                       allowed: 2g, 3g; preferred: 3g
            |              current: allowed: 2g, 3g, 4g; preferred: 4g
   --------------------------------
   IP       |            supported: ipv4, ipv6, ipv4v6
   --------------------------------
   3GPP     |                 imei: 866880020011522
            |          operator id: 25001
            |        operator name: MTS RUS
            |         registration: home
   --------------------------------
   3GPP EPS | ue mode of operation: csps-1
   --------------------------------
   SIM      |     primary sim path: /org/freedesktop/ModemManager1/SIM/0
   --------------------------------
   Bearer   |                paths: /org/freedesktop/ModemManager1/Bearer/1
            | /org/freedesktop/ModemManager1/Bearer/0
[omv at omv-g99 ~]$ sudo mmcli -m 0 --verbose --3gpp-ussd-initiate="*100#"
[19 окт 2023, 00:10:26] [Debug] Forcing request to be run asynchronously
[19 окт 2023, 00:10:26] [Debug] Assuming '0' is the modem index
[19 окт 2023, 00:10:26] [Debug] ModemManager process found at ':1.63'
[19 окт 2023, 00:10:26] [Debug] Modem found at 
'/org/freedesktop/ModemManager1/Modem/0'

[19 окт 2023, 00:10:26] [Debug] Asynchronously initiating USSD session...
error: couldn't initiate USSD session: 
'GDBus.Error:org.freedesktop.ModemManager1.Error.MobileEquipment.NotSupported: 
Operation not supported'

ussd do not work for me ...