Newbie to UC500 but experienced IP engineer: My model of UC500 has built-in BRI ports. I have purchased a VWIC2-2FXO card to use for the public switched network instead of the BRI ports. Cisco Configuration Assistant -> Configure -> Telephony -> Voice ->Device initially shows Built In: 4 FXS and Built In: 4 FXO. It then has a think about it and changes to Built In: 4 FXS and Built In: 2 BRI which is fine. However, it is only then that the panel below shows Public Switched Telephone Network and gives me the option of Basic Rate Interface BRI Switch Type. I can change this from the default Basic-NET3 to None but was hoping to see the FXO ports appear in the panel. Any assistance on FXO on VIC to be confogured for Public Switched Telephone Network would be appreciated. I have trawled various manuals but no joy so far.