I just installed a cisco T1 PRI card into my router (cisco 2821) that has CME running on it.
I'm trying to configure it in order to be able to make incoming and outgoing calls to the PSTN network. I've never done this before and the online sources are confusing me. Could you please help me with that?
I would like to have any internal phone able to make and receive calls from/To the PSTN newtork.