Hello - I have a remote site running a 1760 router with 6 POTS lines connected in to FXO ports (3 lines to be used as local DIDs). This site is connected to HQ with 2 CCM (pub & sub) & a isr2821 via ppp on the isr. When I shut the ppp on the 2821 I can call in to the POTS lines at the remote site and ring a phone via plar rules. When ppp is connected I receive a ring and the busy signal. To me it seems like the FXO cannot find the extension defined in the CCM. Also the FXO endpoints in the CCM report they are not registered. I'm stuck. Please let me know what I'm missing. - Thanks much, Mike