I am not sure about all the questions, but let’s see:
- the SIM card slot will be integrated onto the main board and the SIM card as well as the microSD card will sit on a tray
- I am not sure what you mean with high/low voltage SIM card detection?
- we do not use any PCIe interface to the modem. The M.2 socket for the modem will not have PCIe signals routed to it. The modem control and data will run over USB interface, the audio data will be routed over the PCM interface of the card. We also expect that VoLTE audio data will be routed through the PCM interface, but this is still t.b.d.
Hope this helps.