B5 SYSTEM ADMINISTRATION—SERVICE SETTINGSInstallation Manual 291Alternate Extension-DeleteThe system can delete extension numbers from the alternate extension group.Alternate Extension-ListingLists all of the extensions registered in the alternate extension group.B5.2 Custom ServiceCustom Service is one of 4 incoming call services. By assigning a function to each key, youcan provide callers with a customized key operation service. You can establish a maximum of100 Custom Services with the possible depth of 8 layers. The Message Manager shouldrecord Custom Service Menus so that callers will know which key to press.NoteCallers cannot jump between Custom Service menus more than 8 times.To access the menu for Alternate Extension-Delete Parameter, follow the menu pathas shown:System Administration Top Menu-1-4-1-3-2To access the menu for Alternate Extension-Listing Parameter, follow the menu pathas shown:System Administration Top Menu-1-4-1-3-3To access the menu for Custom Service Parameter, follow the menu path as shown:System Administration Top Menu-1-4-2-Custom Service No.(1-100)Table B-15Parameter Value Range(Default)Description/FunctionDescription Up to 32characters(None)The information typed in this field is for reference only. AnyASCII character (except \) can be used.PromptMode1. System2. User 13. User 2(System)Specifies the language of services within Custom Service.NoteThis parameter overrides "Incoming Call Service Prompt".