You need to have an application on your phone, that first connects to the Router VPN with a secure connection.
I do not know about your router. I think that that is the wrong type of VPN in your router. (not sure)
There are two types of VPN inbound and outbound.
Outbound, hides your activity from the internet, it normally has a monthly fee. Hides your activity when going to web sites. (google,your bank, office, web email......)
Inbound, encrypts data into your home network. Allows access to all system on your home subnet.
I think that to get this working you are going to need to find someone that has the same internet provider and router .