Welcome to DECT 4027, 4070, and 4075 Handsets16Safety precautionsObserve the following safety precautions before you use your handset.CAUTIONModifications to this equipment not approved by Nortelcan make this equipment noncompliant with the appliedrequirements.Nortel recommends that you use only compatibleheadsets.WARNINGDo not open the handset when it is switched on orconnected to the charger; doing so can expose you tohigh voltage. Only authorised service personnel mustperform repairs.Do not dispose of defective or used batteries inmunicipal waste. Return old batteries to the batterysupplier, a licensed dealer, or a designated collectionfacility. Do not destroy batteries.Do not remove, install, or charge batteries in hazardousenvironments (such as explosive environments),hospitals or vehicles.If your interior handset becomes wet, do not use a blowdryer or oven to dry it. Switch off the handset, removethe battery, shake out excess liquid from the handset,and let it dry for 72 hours at room temperature.
