headset adapter for Motorola MCC7500 and 8434D telephone set

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  • materwey
    Whiz
    • Mar 2010
    • 40

    headset adapter for Motorola MCC7500 and 8434D telephone set

    We have a CM5.2. The Central Control area in our jail, which currently uses a 8434D telephone set with a 500AM headset adapter, will soon have a radio console installed in their work space. Not surprising they would like to have one headset for both the phone and radio console. It is a Motorola MCC7500 console and the VPM (voice processor module) is looking for the following:
    1. Off hook. (Dry contact closure when on the phone this would activate our on air lights)
    2. 2 wire audio. (combined TX, and RX audio to be sent to recorder)
    3. 4 wire audio. ( this would be the audio sent to the headset)
    Any suggestions on how I can accomplish this?
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