I have a site that has this set up on an old phone system and need to support it in the new CME. I am having a tough time figuring out if I can get support an OPX line for a remote analog phone on a 3800 router. I see the plar opx stuff for FXO ports but this isn't what I'm looking to do. I would think that I need it on the FXS side. Anyone know if this is doable?