A T1 is 24 channels of voice.
A PRI is 23 channels of voice and 1 channel of data. That 1 data channel is VERY important. If the data does not talk back and forth the circuit will not come up. Yes, it needs to be PRI. You already have the T1 card - right? (that is how the T1 works) all you need is the PRI Enabler Key Code.
Unless you are running less than 4.1 software, then of course you will need to upgrade the software as well.


If CON is the opposite of PRO
Then what is the opposite of Progress?