Sell INTER MULTI PARTY CALL PHONE best price

INTER MULTI PARTY CALL PHONE Application for : - Office building, School, Factory workshop, Family used, Stationery etc. * Intercom Indoor phone for Multi Room to Room * Operation distance 1000m UTP cable connected * Easy to install, DIY installation * Energy saving and no current consumption while not work * Four-way Inter phone * Wireless Digital Dual-way model * Multi-party call COMMON TALK INTER PHONE / PAGING SYSTEM 1. Paging Function (Broadcast) 2 Internal Intercom Featured 3 . Amplifying System 4. Unlocking and Intercom Function 5 .Group Calling 6. Confidential Calls and Public Calls Available for use one door station with twelve room components and also use for outdoor station .