@Jason105 Great, I finished returning mine in the end after trying to get through to technical support live chat and them denying it would ever act as a modem (despite me sending photos of the box)...

@Jason105 any progress at all?

@TP-Link Started the returns process but not sent it yet so happy for the help. Slight problem is I have no mobile signal where I live so if they wanted to talk me through stuff it's not possible as...

@TP-Link WiFi calling works perfectly on a network created by a VR900. Doesn't work at all on one created by the X20-DSL. No Android phone to test with but two iPhones and their associated iPads and...

@TP-Link Hi no, it's completely failed to work when used as a modem. I had it contacted as solely a router when having the WiFi calling issues.

@Jason105 I was going to till I saw the WiFi calling hasn't been working for at least 6 months, disappointing because the device I was trying to replace was a TP-Link one which works fine.