Operation 665Figure 211 "Connecting RAN equipment to the NT8D14 Universal TrunkCard (typical)" (page 666) shows a typical connection from a singleannouncement machine channel to unit 0 on a universal trunk card installedin slot 0 in an NT8D37 IPE Module.See Communication Server 1000M and Meridian 1 Large SystemInstallation and Configuration (NN43021-310) for trunk wiring information.Recorded announcement machines store prerecorded voice messagesthat are played back to the trunk units to which they are connected. Mostcommercially available announcement machines store recordings digitally,although some drum and tape units are still in service.An announcement machine can provide one or more channels and eachchannel may be prerecorded with a different message. Some announcementmachines also provide a Special Information Tone (SIT) capability. Thesetones are inserted at the beginning of intercept messages such as "Your callcannot be completed as dialed. Please check the number and try again."Nortel Communication Server 1000Circuit Card ReferenceNN43001-311 01.04 StandardRelease 5.0 23 May 2008Copyright © 2003-2008, Nortel Networks.