On an ECS with 408 cards the customer got the Camp On display on line 1. I swapped trunks (loop start from cable co.) and line 1 still showed Camp On, while line 2 did show the CID. Reset the 408 card, then it was working for about a day on line 1. It's happening again - according to the customer's history we have I believe an entire system reset was done in 2015 for the same trouble, scheduled automatically after hours. I wonder if that's the only remedy, or could the 408 card be n/g?