FWA505v2 with sim card and IPv6 only

Tomy01

Hello,
I would like to use a Zyxel FWA505v2 with an Orange/Sosh SIM card on a mobile network operating in IPv6-only mode, with access to IPv4 destinations via 464XLAT.
Before purchasing, could you please confirm the following points specifically for the FWA505v2 with the current firmware?
In the mobile APN configuration, does the PDP Type field actually allow selecting IPv6 only, and not just IPv4 or IPv4/IPv6?
When the modem receives only an IPv6 address on the mobile WAN, can the FWA505v2 operate as a CLAT (Customer-side Translator) and automatically provide IPv4 connectivity to LAN devices using 464XLAT?
In this configuration, can a device connected to the LAN directly reach a literal IPv4 address, for example 1.1.1.1, even though the router’s WAN has no IPv4 address?
This last point is important because it confirms that the router is using a genuine CLAT/464XLAT implementation rather than only a DNS64 mechanism.
Thank you in advance for your technical reply.
Kind regards,