We recently purchased the necessary Bogen Equipment (TPU15A & TAMB) to integrate our Cisco VoIP 7960's phones to a Sound Management overhead sound system. We are using a 2651 router and Call Mgr 4.1.3(SR2). My questions concerns the directions I have that call for the use of an FXO Port. We have 8 phone lines coming in on the FXO's and do not want to sacrifice an FXO for Paging. Ideally, we would like to use an FXS which is not being used on the router. Is there an advantage to either FXO or FXS and is there any documentation on the CM/Router set up to use an FXS Port for Paging?? Thanks