How do I connect two phones to the BGW320-500 for VoIP service?

The BGW320-500 supports two VoIP lines over one RJ-14 (FXS) port, but an inner and outer pair splitter adapter must be attached to the port to terminate both lines. Connect one end of the phone cable to the gray Phone Lines connector on the gateway, then connect the phone cable to a splitter and then to both phones. Ensure the gateway is at least 5 feet (1.5 m) from any cordless phone base station to prevent interference. (Page 15, 16)