Before Operating the Telephones2-2 OperationWhat kind of telephone can be used?You can use a single line telephone (SLT), such as a rotary pulse telephone or a Panasonic proprietarytelephone (PT) such as the KX-T7436. Operate the feature depending on the telephone you are using.If you are using a Panasonic proprietary telephone with a special function button such as and/orhas a display (D – PT), you can follow the operation with the button or display messagesfor easy programming.If you use a large display telephone (e.g. KX-T7436), you can follow the displayed messages to operatethe features.If your telephone does not have function buttons and/or a display, you may operate the unit by enteringa feature number instead. Follow the available operation with your telephone.If you use a Console, you can use the buttons on the Console as the buttons on the connectedproprietary telephone.REDIALFeature NumbersTo operate certain features, you need to enter specified feature numbers (and an additional parameter,if required).There are two types of feature numbers as follows:• Flexible feature number• Fixed feature numberFixed feature numbers cannot be changed. However, you can change the flexible numbers to othernumbers for easier use. If you want to change the numbers, consult your dealer. In this manual, thedefault numbers (factory installed) are used for operations.A flexible number is shown as (half-shaded key). Use the new programmed number if you havechanged the feature number. Write the new number in the “Feature Number List” (Appendix).If you use a single line telephone which does not have the “ ” or “#” keys;it is not possible to access features that have “ ” or “#” in their feature numbers.TonesYou will hear various tones, during or after an operation, for confirmation. Refer to “What is ThisTone?” (Appendix).0• If you use a Panasonic proprietary telephonewhich does not have function buttons, you maychange one of the unused flexible buttons to afunction button. Refer to “Customising theButtons” (Customising Your Phone & System).!!!!