Not sure if I'm in the right area or not, but I'm looking for some help on old school fxo / fxs setup (NO IP PHONES).
The cisco sales department wasn't sure what exactly I was going to need, and an engineer never got back to me, but basically I'm going to have 2x of each of the following:
I'm wanting some old school trunking. Simple analog extensions from a phone system in one office get fed to another office and terminated on the phone system as analog "CO" trunks, and visa versa with extensions fed back to the first office as "CO" lines.
The sales department was telling me I need the call manager express and all this other stuff (as far as I know that is only for IP phone services - which we will have none).
What I need is for someone to point me to a programming example and possibly some tips and tricks or something, and I need to know if any other hardware is required besides the routers, fxo, and fxs cards. Is 64mb ram and 32mb flash sufficient for this setup (keep in mind this is the only funtion these routers are going to be serving). I think even a 16mb flash would probably hold the ios this would need, but what would the ios version need to be? Something 12.3 or higher (package? - k9? ipbase?)
For this type of setup to trunk two sets of analog connections together, you can use the voice port level command "connection trunk".
You will need PVDMs to do any analog-to-digital conversion for voice packets. Use the DSP calculator to find out what you need to get: