Installation manual

ESI Communications Servers Hardware Installation Manual Phones
B.2
IP phone models
Note: For information concerning Cordless Handset models, see “ESI Cordless Handsets” (page B.3).
Current models
• ESI 60 (IP versions) — 10/100 or Gigabit Ethernet. Three-line, 56-character display (adjustable backlit
display available); speakerphone; headset jack; 48 programmable feature keys; supports VIP and the
60-Key Expansion Consoles.
• ESI 40 (IP version) — 10/100 Ethernet. Three-line, 56-character display (adjustable backlit display
available); speakerphone; headset jack; 16 programmable feature keys; supports VIP and the 60-Key
Expansion Consoles.
• 48-Key IP Feature Phone II — Three-line, 56-character display; speakerphone; headset jack;
30 programmable feature keys; supports VIP and the 60-Key Expansion Consoles.
• Remote IP Cordless Handset II and Local IP Cordless Handset II.
Legacy models
• Remote IP [original] Cordless Handset and Local IP [original] Cordless Handset.
Features and support for standards
An ESI desktop IP phone looks and works like a regular digital phone as described on page B.1, but connects
from within the local premises via an IP local area network (LAN) rather than twisted-pair cabling. If used on-
premises, an ESI IP phone derives its operating power directly over the LAN from Power over Ethernet
(PoE). If used remotely, an ESI desktop IP phone connects to the cabinet from a remote location via an IP
network (either a WAN or the public Internet). Each ESI desktop IP phone derives its power from an individual
Power over Ethernet (PoE) adapter. An ESI desktop IP phone supports the following features and standards:
• IEEE 802.3af Power over Ethernet (PoE).
• Power via PoE.
• Can be configured for either local or remote (off-site) operation.
• Uses a G.711 codec in its “local” mode of operation and a G.726 codec in its “remote” mode. In G.711
mode, the transfer rate is 206 Kbps; in G.726 mode, the transfer rate is 90 Kbps.
• Can use DHCP
1
to obtain an IP address:
– In “local” operation, DHCP can be enabled or disabled
2
for the ESI desktop IP phones on each IVC.
Alternatively, a “static” IP address may be assigned by the Installer (in Function 31; see the ESI
Communications Servers Programming Manual, ESI document #0450-1050).
– In “remote” operation, an ESI desktop IP phone automatically uses DHCP to obtain an IP address and
default gateway.
(Continued)
1
Dynamic Host Configuration Protocol, an IP standard described in RFC 2131 (http://www.ietf.org/rfc/rfc2131.txt).
2
Default setting for DHCP is disabled.