Off-hook signaling, Off-hook signaling for outside calls, Off-hook signaling for intercom calls – NEC P/N 1093099 User Manual

Page 122: Off-hook signaling for hotline calls, Description

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Off-hook signaling, Off-hook signaling for outside calls, Off-hook signaling for intercom calls | Off-hook signaling for hotline calls, Description | NEC P/N 1093099 User Manual | Page 122 / 190 Off-hook signaling, Off-hook signaling for outside calls, Off-hook signaling for intercom calls | Off-hook signaling for hotline calls, Description | NEC P/N 1093099 User Manual | Page 122 / 190
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