These settings are used for S0 ports provided by an S08 expansion module connected a control unit. For full details of installation refer to the IP Office Installation manual.

Though displayed as lines, these BRI ports are used for connection of ISDN2 devices such as video conferencing units or ISDN PC cards.

Calls received on IP, S0 and QSIG trunks do not use incoming call routes.  Routing for these is based on incoming number received as if dialed on-switch. Line short codes on those trunks can be used to modify the incoming digits.