LSSGR: Features Common to Residence and Business Customers I, FSD“s 00 to 01-01-1000
Document status: [ Active ]
LSSGR: Attendant and Customer Switching System Features and Customer Interfaces
Document status: [ Active ]
Public Telecommunications Service FSD 10-01-0000
Document status: [ Active ]
LSSGR: Interoffice, FSDs 25-05-0903, 25-06-0501, 25-06-0502, 25-06-0506
Document status: [ Active ]