ESI 50L Business Phone System

Communication Server

The ESI-50L architecture allows expansion when required. The Base Cabinet and optional “piggybacking” Expansion Cabinet are wall-mountable and require very little space in your phone closet. When your business is ready, the entry-level ESI-50L can grow into a full-fledged ESI-50 Communications Server, with many more call-processing capabilities and productivityenhancing features (including ACD and support for PRI digital lines and IP communications)..

System highlights (maximum capacities shown)

Total stations – 40
IP stations – na
Digital stations – 32
Analog stations – 8
Call-processing ports – 56
Central Office (CO) lines – 16
Digital line cards (T1/PRI) – na
Voice mail ports – 4
Voice storage (hours) – 15
Station/special-purpose mailboxes – 266
Conference ports (16 members/conference) – 16
Shared-office tenanting (tenants) – na
ESI Presence Management – Optional
VIP applications – Optional
Mirrored Memory Module (M3) backup – na