T7208 and T7100 work with Nortel digital phone systems, and the other 4 phones are analog. Includes an assortment of cables, 1 9v AC adapter and 3 16V AC adapters. All sold as-is. I can't test them anymore. They all worked when removed from service, but that was a few years ago. Are there enough handset cords included? Probably not. Again, this lot is sold as-is. Just make a reasonable offer.