ESI IVX 128E Phone System Condition:Refurbished the 8662E has all the

the 8662E has all the same great features of the 550

The ShoreTel SG-T1K supports up to 23 voice channels and one D channel through a PRI

Two Network Module Slots

packet filtering

The Adtran 4242908L1 offers four T1

ESI IVX 128E Phone System Condition:Refurbished the 8662E has all theIVX E Class is among the most capable of ESIs IVX family of advanced business telecommunications systems. Although its energy efficient system cabinet is about the height of an ordinary sheet of copier paper, it includes full featured voice mail, a sophisticated automated attendant, and automatic call distribution (ACD). It also supports ESIs VIP enhancement for Microsoft Outlook as well as advanced voice over IP (VoIP) communications and ESI Presence