... country clubs, hospitals, health clubs, and offices System components: 1) System host F 2) Remote controller 3) Button: ... System features: 1) Kinds of buttons are available:: Can choose many kinds of requesters: HY-2610A, HY-2610B, HY-2610C, HY- ... is needed, we have signal enhancers for the system. 3) Service progress is visible: with the ... staff efficiency sell MMcall Wireless Calling System (HY-2677F)