| http://www.w3.org/ns/prov#value | - Further, and especially in embodiments in which the PTT separator 450 is coupled to the PTT conductor to accommodate a headset incorporating a PTT switch, the PTT separator 450 may have a latching characteristic in which the PTT separator 450 maintains its enable signal to the alternate bias voltage source 440 and the injection voltage source 445 in spite of detecting the triggering resistance bei
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