I am programming a Definity G3 for music on hold using a TN763D Aux. Trunk card. The program for this I am going to use is Cha system-parameters features. Is there anything else I need to know. Thx
You can get -48 Volts from the AUX cable or an 1151 power unit. System Features is where you administer the feature. I've seen many installations without the 909 coupler with the music source connected directly to the TN763 port.
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