The RM5000EX Series intercom is designed for large system capacities of up to 56 intercom master and/or remote stations in total. You may combine masters and/or remote stations, for an intermixed system that meets your exact needs. The RM5000EX features a compact central exchange. Simple, home-run wiring makes the RM5000EX system really easy to install. Each master station features all-call (standard), last number redial, privacy, call-back, call reply, group call (up to 2 groups), camp-on, paging capabilities, hurry-up, priority call, microphone cut-out, remote control and digital call display. For private communication, the standard master stations may be removed from their desk/wall mounting, and hand-held like a telephone, automatically cutting off the loudspeakers.The RM5000EX system allows for up to three (3) simultaneous talk paths (links) per system.