Provider compatability

[Clsummers07]

Before I commit to it, will the software be able to run from a CAT5e with RJ11 connector, with an adapter to RJ45 (Ethernet connector), can it run the 4 pin connection with 2 broadband connection lines?

[cookiemonster]

the "software" is reliant on the physical connection only to establish the physical links. It'll use what that link provides to sync a speed.
Note of caution though. RJ11 at least in the UK are used (still) to connect xDSL lines which need an authentication before the link gets established and a session created on BRAS at the ISP edge. That means for the user, that they need to enter credentials on a device doing this handshake. OPN has PPoE , PPE and others for the WAN. This I expect to "work" for one WAN. As to the speeds achieved via this RJ11 to RJ45, I don't know but imagine it depends on quality of the connector and other extraneous factors.
As to two broadband lines, then you would have the same option for the second port on the appliance and you'll clearly need one more interface at least for LAN i.e. minimum 3 interfaces.
Finally, those two WANs, once setup, can not be used to "aggregate" the bandwith but I suppose you already know that.