FXO/FXS Port configuration

[USMCdata]

I am trying to extend services to another location using a WPPL(Wireless Point to Point Link). I am all out of PBX devices to extend voice services, and I need to find a way to configure the FXS/FXO ports on my cisco 3825 to allow the remote side to be able to access DSN via My side's PBX (DEOS--Deployable End Office Switch). We will be using all POTs phone on the distant end so VoIPs are out of the picture. Also I am trying to find a way to have this happen without the use of a call manager. Preferably as a call is made on the distant end it is sent to my end via the WPPL and will hit my PBX to direct it where to go. Most of the information that I have found online is for configuring for VoIPs and using Call Managers.

Any information at all that would be able to help me would be very much appreciated.

Thanks!