FritzBox Caller Name always "Unknown"

Hey,

I’m running a FritzBox 7590 on 7.29 (the latest Firmware).

When I get called or doing a Call, it shows the Caller Name as “Unknown”. The Number is shown Fine.

{
    "event_type": "state_changed",
    "data": {
        "entity_id": "sensor.fritz_box_7590_call_monitor_privat",
        "old_state": {
            "entity_id": "sensor.fritz_box_7590_call_monitor_privat",
            "state": "dialing",
            "attributes": {
                "type": "outgoing",
                "from": "XXXX",
                "to": "XXXX",
                "device": "SIP2",
                "initiated": "2021-12-22T17:58:58",
                "to_name": "unknown",
                "icon": "mdi:phone",
                "friendly_name": "Fritz!Box 7590 Call Monitor Privat"
            },
            "last_changed": "2021-12-22T16:58:58.657654+00:00",
            "last_updated": "2021-12-22T16:58:58.657654+00:00",
            "context": {
                "id": "0d7de77d38a5f44a9877e206a9d16072",
                "parent_id": null,
                "user_id": null
            }
        },

It would be nice, if you have any tip how I can solve this issue. Right now I bypass this by Hardcode Numbers:

   {% if is_state("sensor.fritz_box_7590_call_monitor_privat", "ringing") %}
       {% if state_attr('sensor.fritz_box_7590_call_monitor_privat', 'from') == "XXXX" %}
       Me is calling!
       {% endif %}
     {% endif %}

It’s a while but did you made any progress on this?