We have a customer that has a Samsung OS7200 with a PRI. When dialing a long distance number, the customer does not have to enter in a 1, just the ten digits, and the call goes through. I called Bell Canada and they tell me to check the PRI settings on the OS7200, is it set for National or Unknown. I have went through the PRI programming and unless I missed it, I cannot find this setting. Is there even a setting for this?