I was changing the default DN of my CDN by first de-acquiring the CDN (4809) from Symposium. After refreshing, the display showed de-acquire pending and from the PBX, info code CDN003 16 4809 8 1 22 came up. The code states that the specified CDN was put to default mode by an application on the link number. I then went to LD 23 to change the the DFDN (from 4800 to 4844)of the subject CDN (4809). No error was displayed. When I tried to re-acquire the CDN, it showed acquire pending. Even after refreshing the display several times, the CDN is still showing acquire pending. Any help and advise please. Thank you.