... : Prestige 905K, 906K, 907K MITEL: Superset 4000 Series, Models 4001, 4015, 4025, 4125, 4150, SuperConsole ... 5235, 5240, 5550 IP NEC: Electra Elite DTerm, Series E, Models DTU-8, DTU-8D, DTU-16, DTU ... IP565 Siemens/ROLM: Optiset E Series with CA or HA option modules Optiset E Advance Optiset Advance Plus+ ... DP5018-S, DP5000-Series Ulytel: Ulytel 1, Ulytel 2, Ulytel 5, Ulytel 4 (2-line) Uniden: 420 ...