Specifications

ESI Communications Servers Sales Overview
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Power over Ethernet component compatibility
ESI has tested several Power over Ethernet devices for compatibility with its PoE IP phones. The following devices have
been tested with one or more models of ESI Communications Servers:
• Cisco Catalyst 3560 24-port 10/100T PoE
• Adtran Netvanta 1224 PoE
• 3Com Superstack 3 4400 switch power
In addition, the following mid-span Power over Ethernet devices have been tested:
• 3Com 3CNJPSE24 24-port Midspan Solution
• D-link DWL-P1012 12-port PoE Midspan
Dedicated voice over IP resources
A codec takes the analog spoken voice and encodes it as an IP packet, so it can be compressed and transmitted as a
“data” packet. When received by another IP device (IP Phone or other Esi-Link system), the IP packet is decoded to
re-convert it into analog voice. IP communication is impossible without codecs. With dedicated codecs on each available
IVC and IVC 24EL channel, an IP Phone or Esi-Link user will never be denied the ability to place or receive a call due to
a lack of a codec.
Migration capability
For customers who outgrow their existing ESI systems, an ESI Communications Server provides the perfect upgrade path.
1
Most station equipment currently installed on an IVX E-Class or X-Class system may be reinstalled on an ESI
Communications Server. Generally, all Generation II port cards are fully supported by ESI Communications Servers.
Migrating from an ESI-50L to a 60-hour ESI-50 requires a different CompactFlash Memory Module, because the ESI-50L’s
Memory Module is a 15-hour model.
Specifications and requirements
System components
The Base Cabinet includes the main board, which controls all call control and switching within an ESI Communications
Server. The main board also contains these integrated connectors and components:
• Memory Module — Depending on system and configuration, this is either a CompactFlash
®
device or a hard disk drive. It contains
all system programming and configuration data, and pre-loaded voice prompts. The Memory Module provides voice storage at 64
kilobits/second — the industry's highest-quality sampling rate.
• Network Services Processor (NSP) —The NSP provides connection between the ESI Communications Server and the customer’s
LAN.
2
The NSP provides remote access via Ethernet and the Internet for system programming and maintenance. The NSP is
required for all LAN-based options, such as VIP.
• M3 memory back-up
3
— Using RAID
4
-1 hard disk drive technology, the Mirrored Memory Module (M3) maintains system operation
on a separate disk drive in the event of a hard disk drive failure. This mirrored hard drive controller provides redundancy of system
programming, speed-dial entries, and voice mail messages and prompts.
• On-board MOH and overhead paging inputs — Connection of ancillary equipment is easy using the built-in jacks on the front
plate of the Main Board.
• Serial port —SMDR call detail data is output from this port. Technicians connect their laptop computers to this port to perform on-
site programming. The selectable extended SMDR format shows answered and unanswered calls coming into the auto attendant,
extensions, and ACD
5
.
1
No migration path is available for customers of the legacy IVX 128 and IP E-Class systems.
2
Local area network.
3
Standard on the ESI-1000; optional on the ESI-600 and ESI-200; not available on the ESI-100, ESI-50, or ESI-50L.
4
Redundant Array of Independent Drives.
5
ACD not supported by the ESI-50L.