• The default of OGM floating extension numbers depends on system programming. For moreinformation, consult your System Administrator or System Manager.2.1.6 Allowing Users to Seize an Unavailable Outside Line(Trunk Busy Out)When a problem is found on a certain outside line, the PBX automatically makes it unavailable for usetemporarily. The manager can manually enable the outside line and allow users to use it again.To re-enable an outside lineOff-hook.7On-hook.8 5Enter outside line number(3 digits).outside line no. C.ToneEnter 785.PT/SLT/PS• In some countries/areas, the PBX may not be able to automatically make a faulty outsideline unavailable for use.2.1.7 Releasing Network Direct Station Selection (NDSS) MonitorNDSS buttons can be customised on any extension connected to your PBX. AnNDSS button allows an extension user to monitor another extension connected toanother PBX in a private network. The NDSS button light shows the current status ofthe monitored extension in the same way as a DSS button. When it becomesunnecessary to monitor an extension connected to another PBX, the manager canstop the PBX from monitoring it. Any NDSS buttons set to monitor that extension willalso stop monitoring.PT/PSOff-hook.(NDSS)Dial another PBX extensionnumber and then enter #, orpress NDSS.another PBXextension no.OR C.ToneOn-hook.Enter 784.7 8 4• To restart monitoring of an extension after performing this operation, go off-hook, press thecorresponding NDSS button, and go on-hook.2.1.6 Allowing Users to Seize an Unavailable Outside Line (Trunk Busy Out)Operating Manual 245