
ESI-50 Phone System
The ESI-50 Communications Server is a powerful tool around which you can build your organization’s entire telecommunications strategy — and you don’t have to know it all in advance. That’s because the ESI-50 can be a traditional digital business phone system, a fully standards-based IP telephony system, or any mix of the two.
ESI-50 System Features and Benefits
The ESI-50 Communications Server combines multiple first-rate, feature-rich systems into one tightly integrated unit:
- Business phone system
- Voice mail
- Automated attendant with six levels and 100 branches
- Messages-on-hold
- Enhanced Caller ID2
- Automatic call distribution (ACD)
- Intelligent Call Forwarding™3
- Optional Windows®-based VIP family of communication management tools
- Optional ESI Presence Management
- Optional ESI Media Management
- Optional ESI Bluetooth® Voice Integration
- Network-based VoIP telephony
- Digital stations, IP stations1 (including SIP), or any combination thereof
- T1/PRI support 4
- Massive voice message storage
- Sophisticated voice mail features
The base ESI-50L has some of the above features and may be upgraded to an ESI-50. In general, the ESI-50L doesn’t support features that depend on ACD, IP, or high-bandwidth lines.
See ESI-50L Business Phone System