We recently added a 2nd PRI to our system, and are having a problem. (previously we had a PRI and a long distance T1) The provider did not bond the two PRI's together, so when our main PRI filled up, some callers were getting the 'all circuits are busy now' message from the provider. The provider is going to make the change to bind the two PRI's together, but question is, do I need to change any configuration on the PBX so that inbound calls roll over to the second PRI/trunk group when the first is full?