When I try to add a certain directory number to a phone device under a certain "all phones partition". It comes back with error. "Add failed. Cannot insert or update pattern. A Device Template exists with the same pattern and partition." I have looked under call routing-->directory number and call routing-->route plan route and I don't see this number anywhere. I can add this number under and differnet partition without any problem. What is it talking about Device template? I am trying to add a directory number. I looked CTI route points as well and no reference to this certain number. Any ideas as where to look next?