USSD on a Sierra Wireless

[Aleksander Morgado]

Hey hey Vincent!

>
> I am using this modem:
>
> Bus 002 Device 008: ID 1199:a001 Sierra Wireless, Inc.
>
> With cdc_mbim from Linux 3.16 and ModemManager 1.2.0 from Debian.
>
> /org/freedesktop/ModemManager1/Modem/2 (device id 'c5ce720922fa41226173f15025ceffaf393163fb')
>   -------------------------
>   Hardware |   manufacturer: 'Generic'
>            |          model: 'MBIM [1199:A001]'
>            |       revision: 'FIH7160_V1.1_MODEM_01.1349.12'
>            |      supported: 'gsm-umts, lte'
>            |        current: 'gsm-umts, lte'
>            |   equipment id: 'XXXXXXXXXXXXXXXXX'
>   -------------------------
>   System   |         device: '/sys/devices/pci0000:00/0000:00:14.0/usb2/2-4'
>            |        drivers: 'cdc_mbim'
>            |         plugin: 'Generic'
>            |   primary port: 'cdc-wdm1'
>            |          ports: 'wwan0 (net), cdc-wdm1 (mbim)'
>   -------------------------
>   Numbers  |           own : 'unknown'
>   -------------------------
>   Status   |           lock: 'none'
>            | unlock retries: 'sim-pin (3)'
>            |          state: 'registered'
>            |    power state: 'on'
>            |    access tech: 'gprs'
>            | signal quality: '74' (cached)
>   -------------------------
>   Modes    |      supported: 'allowed: 2g, 3g, 4g; preferred: none'
>            |        current: 'allowed: 2g, 3g, 4g; preferred: none'
>   -------------------------
>   Bands    |      supported: 'unknown'
>            |        current: 'unknown'
>   -------------------------
>   IP       |      supported: 'ipv4, ipv6, ipv4v6'
>   -------------------------
>   3GPP     |           imei: 'XXXXXXXXXXXXXXX'
>            |  enabled locks: 'fixed-dialing'
>            |    operator id: '20810'
>            |  operator name: 'F SFR'
>            |   subscription: 'provisioned'
>            |   registration: 'roaming'
>   -------------------------
>   SIM      |           path: '/org/freedesktop/ModemManager1/SIM/1'
>
>   -------------------------
>   Bearers  |          paths: 'none'
>
> I am trying to access USSD information, but:
>
> $ mmcli -m 2 --3gpp-ussd-initiate='*101#'
> error: modem has no USSD capabilities
>
> If I stop ModemManager and look directly with mbimcli, I see that:
>
> [/dev/cdc-wdm1] Device capabilities retrieved:
>               Device type: 'embedded'
>            Cellular class: 'gsm'
>               Voice class: 'no-voice'
>                 Sim class: 'removable'
>                Data class: 'gprs, edge, umts, hsdpa, hsupa, lte'
>                  SMS caps: 'pdu-receive, pdu-send'
>                 Ctrl caps: 'reg-manual'
>              Max sessions: '8'
>         Custom data class: 'unknown'
>                 Device ID: '013937000980829'
>             Firmware info: 'FIH7160_V1.1_MODEM_01.1349.12'
>             Hardware info: 'XMM7160_V1.1_MBIM_GNSS_NAND_RE'
>
> [/dev/cdc-wdm1] Device services retrieved:
>         Max DSS sessions: '0'
>                 Services: (14)
>
>                           Service: 'basic-connect'
>                              UUID: [a289cc33-bcbb-8b4f-b6b0-133ec2aae6df]:
>                       DSS payload: 0
>                 Max DSS instances: 0
>                              CIDs: device-caps (1),
>                                    subscriber-ready-status (2),
>                                    radio-state (3),
>                                    pin (4),
>                                    pin-list (5),
>                                    register-state (9),
>                                    home-provider (6),
>                                    signal-state (11),
>                                    visible-providers (8),
>                                    preferred-providers (7),
>                                    network-idle-hint (21),
>                                    packet-service (10),
>                                    ip-configuration (15),
>                                    connect (12),
>                                    device-services (16),
>                                    device-service-subscribe-list (19),
>                                    ip-packet-filters (23),
>                                    provisioned-contexts (13)
>
>                           Service: 'sms'
>                              UUID: [533fbeeb-14fe-4467-9f90-33a223e56c3f]:
>                       DSS payload: 0
>                 Max DSS instances: 0
>                              CIDs: configuration (1),
>                                    read (2),
>                                    send (3),
>                                    delete (4),
>                                    message-store-status (5)
>
>                           Service: 'ussd'
>                              UUID: [e550a0c8-5e82-479e-82f7-10abf4c3351f]:
>                       DSS payload: 0
>                 Max DSS instances: 0
>                              CIDs: ussd (1)
>
> There are other services. So, should USSD be available with this modem
> or not?
>

So, yeah, USSD is available in your modem via MBIM, as libmbim/mbimcli
says; but ModemManager doesn't implement yet USSD via MBIM... Patches
welcome :)

-- 
Aleksander
https://aleksander.es