LQ-R4W4-2W4 on September 27, 2015 | Marketing Team The LQ-R4W4-2W4 enables the connection of both partyline and 4-wire audio over LAN, WAN or Internet IP infrastructures in a 1RU panel. The partyline connections are compatible with Clear-Com and RTS; while the 4-wire connections can support ECS, EHX and Drake 4000 II panels.