1.30.5 QSIG Enhanced Features1.30.5.1 Network Direct Station Selection (NDSS)DescriptionWhen PBXs are networked using ISDN or IP-GW cards, it is possible to assign flexible buttons as NetworkDirect Station Selection (NDSS) buttons. These buttons are used to monitor the status of extensions connectedto up to seven other PBXs in the network, and to make or transfer calls to those extensions with one touch,like normal DSS buttons. This allows operator functions to be centralised even when there are offices in remotelocations.NDSS buttons show the status of the monitored extension as follows:Light pattern StatusOff The monitored extension is idle.Red on The monitored extension is busy or has set DND for trunk calls.[Example Network]PBX-1NetworkID 1PBX-2NetworkID 22001 (busy)2002 (idle)4001 (idle)PBX-3NetworkID 0PBX-4NetworkID 3Extn. 2001Extn. 2002Extn. 40011001 (busy)Extn. 1001Extn. 2002Monitor extensionMonitorextension[Programming Procedure]1. Routing Table AssignmentTIE Line Routing and Modification tables must have been programmed in advance for all PBXs in thenetwork, to allow calls to be made and transferred between PBXs (® 1.30.1 TIE Line Service).In the programming example that follows, the PBXs in the network use the Extension Number method, asshown in the illustration above. However, the PBX Access Code method can also be used.2. Network PBX ID AssignmentAssign a Network PBX ID to each PBX in the network.® 11.2 [9-2] Network Data Transmission— Network Data Transmission for Centralised OperatorFeature—Network PBX ID• IDs 1-8: Can monitor extensions at other PBXs, and transmit monitor data about local extensions. EachID number can be assigned to one PBX within the network.• ID 0: Retransmits monitor data throughout the network. This ID number can be assigned to multiplePBXs.3. QSIG Port Setting [Monitored PBX]Feature Guide 3631.30.5 QSIG Enhanced Features
