ESI Communications Server 50

ESI CS 50 Business Phone System

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
ESI Media Management - Optional
ESI Mobile Messaging - Optional

ESI CS 50 Brochure

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)

Extensive phone options

• ESI Digital Feature Phone — 24-Key, 40D, 60D
• ESI 40IP (10/100), 60IP (10/100), 60IP (Gigabit) — Connects via LAN, WAN, or Internet; provides full ESI feature set via IP, either locally or at remote location; uses industry-standard G.711 and G.726 compression to reduce bandwidth requirements.
• ESI Cordless Handset — Two sizes each of three models: Digital, [local] IP, and Remote IP; IP models allow Power over Ethernet (PoE) or AC power for your maximum convenience.
• Standard analog sets