TELSTRA TELEPHONE EXCHANGES
TELSTRA GLOBAL DATA EXCHANGE
CROYDON ZONE SUBSTATION
ARGENTON SUBSTATION
PARRAMATTA EAST ZONE SUBSTATION
RYDE ZONE SUBSTATION
ORCHARD HILLS SWITCHING STATION
MAYFIELD SUBSTATION
WAMBERAL ZONE SUBSTATION
PARRAMATTA WEST ZONE SUBSTATION
SUSSEX INLET ZONE SUBSTATION
MARAYONG ZONE SUBSTATION
KURNELL ZONE SUBSTATION