System File Restore - Pc - Panasonic NS1000 Manual

2.4 System File Restore – PC (1)
A PBX's system data (DCSYS File and LICxx Files) can be restored from a PC .
Tool -> File Transfer PC to PBX
Browse for the desired file (DCSYS or LICxxx)
and click 'Execute'
NB: Only 1 file can be transferred at a time