1.18 Proprietary Telephone (PT) FeaturesFeature Guide 1271.18.3 LED IndicationDescriptionThe LED of the Message/Ringer Lamp and the following buttons (Line Status Buttons andCorresponding Extension Status Button) can indicate line status with a variety of light patterns.Line Status Buttons: S-CO, G-CO, L-CO, INTERCOM, G-DNCorresponding Extension Status Button: DSS1. Light Pattern of the Message/Ringer Lamp• 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 ButtonsIncoming CallDistribution(ICD) GroupLine StatusIntercomLine StatusCO Line StatusLine StatusButton:Red onOffGreen onLightPatternSlow greenflashingModerategreenflashingRapid greenflashingSlow redflashingS-CO G-CO L-CO INTERCOM G-DNIdleThis extension is using the line.This extension is holding the line.This extension is holding the line using Exclusive Holdor using the line for an Unattended Conference.Incomingcall/PrivacyReleaseIncomingcall foranotherextension/Anotherextensionis using theline/Anotherextensionhas the lineon ExclusiveHold.Otherextensionsare usingall CO linesin the COline group.Anotherextensionis holdingthe line.Incoming call– –– – – –This extensionis logged outof the ICDgroup.Rapid redflashingIncoming call to the ICD group in Ringdistribution method– –
