Boxster - voice control acitvation - MHI2_ER_POG11_P5176 1452

[xterm4k]

Hi
I have a question for a Boxster 2020 (MHI2_ER_POG11_P5176 1452)
I have unlocked the Navi and WiFi with MIB 3.4.1.
The navigation system works. I have not yet tested WiFi, but it is displayed.

Strangely, the voice control does not work.
When I press the voice button on the steering wheel lever, the message "Voice control is currently not available" appears.
If I keep it pressed, it starts Siri.
In "Set" the item "Voice control" is available and is not deactivated.

I have the following codes active in MIB (all codes not mentioned are deactivated):

telephone_coding

• Telephone activated
• Tel. dataservice activated
• BT phone activated
• activate second phone
• DTMF without Active Call
• Map SMS Support
• Map Email Support
• Allow Message Editing

multimedia_system
voice_control

• Voice control System

bluetooth settings

• BT available
• BT Multimedia
• BT Phone
• BT Audio

addFecs Datei from patch folder:

• 00070100
• 00070200

According to the MIB Wiki, these are "SDS Speech Dialog System (Voice Remote Control)" and "SDS Speech Dialog System (Voice Remote Control) for Navigation".

Is my expectation wrong that voice commands should work now?
Did I miss necessary options?
Or is this only possible via PIWIS?
Thanks a lot