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This product is intended for connection to analogue public switched telephone networks and private switchboards in the United Kingdom. This equipment is not designed for making telephone calls when the power fails. Alternative arrangements should be made for access to emergency services. Open this page for an ‘At a glance’ guide to your On-Air DECTf@x Plus At a glance INT - 1 - 1EXT Redial Intercom Recall Handset functions Up/Down. Lets you move through the options and lists. Clear. OK button. T