496 CLASS: Calling Number and Name DeliveryFigure 16System resource allocation after the CND delivery intervalConfigure CND Class of Service on CLASS setsIn LD 10, the system administrator may configure a CLASS set to deliverboth Calling Number Delivery, Calling Name Delivery, or both.To activate only Calling Number Delivery, the station set is to be configuredwith one of the following class of service:• CLASS Calling Number Single Data Message Format Allow (CNUS) or• CLASS Calling Number Multiple Data Message Format Allow (CNUA)Subsequently, whenever a call is presented to that set, the software willdeliver the date and time stamp information (see the "Date and time stampinformation" (page 497) section which follows below) and the calling numberinformation (see the "Calling number information" (page 497) section whichfollows on "Calling number information" (page 497)) per the Bellcore CLASSCND delivery standard.To activate only Calling Name Delivery, the station set is to be configuredwith the Calling Name Multiple Data Message Format Allow (CNAA) class ofservice. Subsequently, whenever a call is presented to that set, the systemsoftware will deliver the date and time stamp information and the callingNortel Communication Server 1000Features and Services Fundamentals — Book 2 of 6 (C)NN43001-106 02.04 StandardRelease 5.5 9 May 2008Copyright © 1994–2008, Nortel Networks.