168 / ETSI MCDN and network featuresModular ICS 6.0 Installer Guide P0992638 03NCD is used as long as the affected lines are ETSI ISDN, andthe affected DIA lines are accessible via ISDN lines. Incomingcalls are diverted back to the ISDN. If NCD fails due tonetwork errors, ECF is invoked. If ECF cannot be executed,the incoming call is routed to the line’s prime extension.An extension with CFB, CFNA and CFAC programmed willgive priority to CFAC for diversion.Selective Line RedirectionSelective Line Redirection (SLR), also referred to as LineRedirection, is enhanced for use with digital lines and operatesin conjunction with NCD.Diversion by SLR takes precedence over diversion by CFAC.An SLR line cannot be diverted by CFAC. If the call arriveson an extension with SLR programmed, a ring splash willsound (if programmed).For information on SLR restrictions refer to Selective LineRedirection on page 168. For information on redirecting linessee Line Redirection in the Modular Plus SystemAdministration Guide.ATTENTION!If a line is configured to appear on severalextensions with redirection programmed,predicting which extension will divert the call is notpossible. This should be considered during systemconfiguration.
