Flexibility
Your ISDN can be configured to support either 'both way' or
'outgoing call traffic' only. You can also redirect incoming calls
from a single or range of numbers to an alternative number
during a scheduled business event or emergency. Your PSTNs
can be delivered via Telstra Rebill or TPG voice using NBN
Access/NTUs up to 8 PSTN where NBN Access is available.