Can anyone recommend a wireless access point that includes a FXS port for VoIP, and also supports acting as a VPN client (connecting to a remote VPN server).

After some research, I have found the EnGenius EPG600 appears to fit the bill, but are there any others? (that aren't going to cost more than $300+)

At a second property, there is only a 4g data connection (B315 modem), and would be nice to access 2talk VoIP line (with standard handset), and a VPN connection back to my home office (with static IP) for remote work (plus I believe VPN is required in order for 2talk VOIP to work over data connection?)

So something like this:

Location A: Home Office (VPN server, static IP) <--->  Internet <---> Location B: B315 Modem <---> Router (VPN client) <---> PC devices / phone handset (VoIP)

Unless there is a magical all-in-one device, that supports LTE (band 28) 700 MHz, Wifi, VPN (client to site) and VoIP (fxs port)?

Unfortunately the Huawei B315 is very basic, no VPN, no VoIP, so can only really use it as a 'modem'.

Please correct me if I am going down the wrong path, or have something wrong?

Thanks