I have to agree, the software on the Cisco EPC2425 appears to be half finished. Even the hardware appears to be badly designed, so much light bleeds between the LEDs that all 12 appear to be lit all the time!
One of the problems with the EPC2425 is when you enable Bridging to connect it to another router, the phone sockets no longer work. However I think there is workaround on Boards by fixing the IP addresses and setting the other router IP as the DMZ.