1.20 Proprietary Telephone (PT) Features238 Feature Guide1.20.3 LED IndicationDescriptionThe LED (Light Emitting Diode) of the Message/Ringer Lamp and following buttons (Line Status Buttonsand Corresponding Extension Status Button) show line conditions with a variety of light patterns.Line Status Buttons: S-CO, G-CO, L-CO, INTERCOM, ICD Group, PDNCorresponding Extension Status Button: DSS, SDN1. Light Pattern of the Message/Ringer Lamp[DPT]• Incoming call from a trunk: Red flashing• Incoming call from another extension: Green flashing• Message(s) present (no incoming call): Red on• No message(s) present (no incoming call): Off[APT]• Incoming call: Red flashing• Message(s) present (no incoming call): Red on• No message(s) present (no incoming call): Off2. Light Pattern of the Line Status ButtonsLight PatternLine Status ButtonTrunk Status Intercom LineStatusIncoming CallDistributionGroup LineStatusS-CO G-CO L-CO INTERCOM ICD GroupOff IdleGreen on This extension is using the line.Slow greenflashingThis extension is holding the line.Moderate greenflashingThis extension is holding the line using Exclusive Hold or using the line for an UnattendedConference.Rapid greenflashingIncoming call/PrivacyReleaseIncoming callRed on Incoming callfor anotherextension/Anotherextension isusing the line/Anotherextension hasthe line onExclusive Hold.Otherextensions areusing all trunksin the trunkgroup.— This extension islogged out of theincoming calldistribution group.
