I'm pretty sure the latest version of handset software has a direct connect option in utilities, so a USB --> Serial adapter from the laptop will give you direct control through the handset if you have a 9pin to RJ11 cable to go from the adapter to the handset. I think that 9pin to RJ11 cable comes with the mount, but the RJ plug is cheap **** and will break within a month of use

The spring tab breaks off so it won't stay in the socket.
If this all all plugs together, you can still use eqmod through it without throwing money at America.