IntermixMatt
Vendor
Yesterday, one of my customers reported a partial service outage. They were unable to call out to local numbers. They could reach long distance numbers (separate circuit) and could receive all incoming calls. I reported this issue to the carrier and they responded a short while later stating that a single channel had gone down on one of our PRIs. To remedy the problem they "switched it to the b-side". I was under the impression that a PRI was all-up or all-down. My understanding of the technology is limited, but am I correct in assuming that what the technician told me is not possible?