11General informationAbout this manualThis document contains general descriptions of the technical options, which maynot always be available in individual cases. The required features must thereforebe individually defined in the terms of the contract.If a particular function on your phone is not available to you as described, thismay be due to one of the following reasons:• The function is not configured for you and your telephone. Please contact yoursystem administrator.• Your communication platform does not feature this function. Please contactyour sales partner for information on how to upgrade.Your telephone can be operated on an OpenScape 4000 telephone system. In-dividual telephone features may deviate on an OpenScape 4000 from those de-scribed.This icon in a section heading indicates that the feature is not available onan OpenScape 4000 telephone system.Other special features in relation to operation on an OpenScape 4000 canbe found on page 182.This User Guide is intended to help you familiarize yourself with the OpenScapeDesk Phone CP400 and all of its functions. It contains important information onthe safe and proper operation of the OpenScape Desk Phone CP400. These in-structions should be strictly complied with to avoid operating errors and ensureoptimum use of your multifunctional telephone in the network.This User Guide should be read and followed by every person installing, operat-ing or programming the OpenScape Desk Phone CP400.This User Guide is designed to be simple and easy to understand, providingclear step-by-step instructions for operating the OpenScape Desk PhoneCP400.Administrative tasks are dealt with in a separate manual. The Quick ReferenceGuide contains quick and reliable explanations of frequently used functions.For your own protection, please read the section dealing with safety in de-tail. Follow the safety instructions carefully in order to avoid endangeringyourself or other persons and to prevent damage to the unit.
