SM1PEIS01 intrinsically safe headset behind the next style SM1PBIS01 intrinsically safe headset with headband Multi-Link ACP Automatic Call Processor ACP-300
SM1PHIS01 intrinsically safe headset helmet style SM1P-Ex intrinsically safe headset with headband Complete antenna, magmount, and cable assembly for w*intercom station.
Heavy Duty 5.8 GHz 6 dBi Omni Antenna The Stick - Automatic Call Processor  Line Sharing Device. The Stick automatically screens and routes all incoming voice, fax, and modem calls to the right equipment every time so there is no need for multiple costly phone lines.