So far, I've been able to program 2 non-ACD i2050 softphones with users same DN. However I just tried to programming for an ACD agent (using CCM6) and received this error: "SCH0718 ACD-ID (DN) already exists". Do i2050's require unique DNs for ACD agents? Thank you in advance. I'm frustrated trying to understand Nortel/Avaya's technical manuals.