We have two offices connected via a tieline. One end is Opt. 61C 25.40 and the other end is 25.3 Opt. 11C. All sets on both ends have TDD in the CLS. I've noticed that sometimes when I call my counterpart on the far end via the tieline I don't see his name until he answers. The far end has also brought to my attention that they don't always see our names until after they answer the phone. Everything looks correct in programming on the set end but there's probably something I'm missing in the CDP/TSC. I appreciate any suggestions. Thank you.