ESI 600 Communication Servers

System Maximum Capabilities

Total stations - 408
IP stations - 408
Digital stations - 336
Analog stations - 188
Call-processing ports - 624
Central Office (CO) lines - 168
Digital line cards (T1/PRI) - 6
Voice mail ports - 32
Voice storage (hours) - 1,200
Station/special-purpose mailboxes - 1,481
Conference ports (16 members/conference) - 64
Built-in automatic call distribution (ACD) - Yes
Shared-office tenanting (tenants) - 8
ESI Presence Management - Optional
VIP applications - Optional
Mirrored Memory Module (M3) backup - Optional

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)