1.1 Before Operating the Telephones1.1.1 Before Operating the TelephonesWhat Kind of Telephone Can Be Used?You can use a Panasonic IP Proprietary Telephone (IP-PT) (e.g., KX-NT346 or KX-NT366) and a single linetelephone (SLT), such as a rotary pulse telephone or a Panasonic proprietary telephone (PT) such as theKX-T7636 or KX-DT346. You can also use a Panasonic Portable Station (PS) such as the KX-TCA255 orKX-TD7690. Use the feature depending on the telephone you are using. If you are using a Panasonicproprietary telephone with a special feature button such asREDIAL or a display (Display PT) or both, you canfollow the operation with the button or display messages for easy programming.If you use a large display telephone (e.g., KX-NT346 or KX-T7636), you can follow the displayed messagesto use the features. If your telephone does not have feature buttons and/or a display, you may operate thePBX by entering a feature number instead. Follow the operation for your type of telephone. If you use a Console,you can use the buttons on the Console as the buttons on the connected proprietary telephone.• If you use a Panasonic proprietarytelephone which does not havefeature buttons, you may changeone of the unused flexible buttonsto a feature button. Referto "3.1.3 Customising the But-tons".Registration for Your Portable Station (PS)Your PS must be registered with the PBX and assigned an extension number before initial use, through systemprogramming. To confirm the extension number of your PS, refer to "Your extension information" inSection "3.1.2 Settings on the Programming Mode".Feature NumbersTo use 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 other numbersfor easier use. In this manual, the default numbers (factory installed) are used for operations.A flexible number is shown as (half-shaded key). Use the new programmed number if you have changedthe feature number. Write the new number in "4.2.1 Feature Number Table" (Appendix).NoticeThe default value of a flexible feature number may vary depending on country/area.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.16 User Manual1.1.1 Before Operating the Telephones