I got an ICT between a 4.2 Cluster and a standalone 6.1 CUCM. So far everything works okay, but the problem is, that when I call from a phone in the 4.2 Cluster over the ICT it displays me the wrong nummber. It prefixes a 00 to the 4-digit number.
When I use DNA it displays me the correct number, without any translation or prefixes. So where might be the problem?