{
    "<SIM card ICCID>": {
        "capability": [
            "voice",
            "ims",
            "volte",
            "vt"
        ],
        "operator": "<SIM card carrier>",
        "phone_num": "<SIM card phone number>"
    },
    "<SIM card ICCID>": {
        "capability": [
            "voice",
            "ims",
            "volte",
            "vt"
        ],
        "operator": "<SIM card carrier>",
        "phone_num": "<SIM card phone number>"
    }
}