Màn hình chính AIPHONE AX-8M.M –       Audio Only Master Station – The AX-8M.M is an audio only master station for the AX series. The unit is CAT-5e homerun wired to it’s CEU and features an oversized TALK button to activate the VOX or PTT style communication, door call-in indicator, call button for other master stations in the system, a call tone volume control and a button for door release. […]