Archer MR200 is a 4G LTE Router. You can insert a SIM card and enjoy the 4G network. But it doesn't have a fxs phone port. http://www.tp-link.com/en/products/details/cat-4691_Archer-MR200.html

You can choose 3G only in Network--Internet--Network Mode.

I think connect on demand means if there's not ADSL connection,it will connect to 4G mode. Ff you choose connect manually and click connect button.Will it connect to the 4G network? If yes,you can...

Hi,the MAC filtering feature is replaced by Black List.If you want to limit some device access M7350,you can use this function.

Hi,the latest firmware for MR3220 is 150929. You can upgrade it and check if it could solve the problem. If the issue remains,you can contact tp-link technical support. Where are you located in?

What's the model No. of your device? The WPS key is usually in wireless setting--Security. You can check it there.