Communication Server
The ESI-50 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.
System highlights (maximum capacities shown)
Total stations – 52
IP stations – 12
Digital stations – 32
Analog stations – 8
Call-processing ports – 87
Central Office (CO) lines – 35
Digital line cards (T1/PRI) – 1
Voice mail ports – 6
Voice storage (hours) – Up to 60
Station/special-purpose mailboxes – 1,089
Conference ports (16 members/conference) – 16
Shared-office tenanting (tenants) – 2
ESI Presence Management – Optional
VIP applications – Optional
Mirrored Memory Module (M3) backup – Optional
Plus other ESI Communications Server features:
- Both digital and IP-based
- Standards-based design (including SIP support)
- ESI’s Verbal User Guide™
- Six-level, 100-branch automated attendant
- Automatic call distribution (ACD)
- ESI phones
- Desktop and cordless models
- Digital and IP
- ESI options
- ESI Presence Management™
- VIP™ family of applications
- Optional IP-based features, including Esi-Link (combines up to 100 ESI systems into one)