IP Server 900 Hardware Installation Manual
Phones
F.1
Phones
ESI IP phones
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 7
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 7
and the 60-Key
Expansion Consoles.
•
48-Key IP Feature Phone II
(includes full duplex and backlit models
1
) — Three-line, 56-character display;
speakerphone; headset jack; 30 programmable feature keys; supports
VIP 7
and the 60-Key Expansion
Consoles.
•
Remote IP Cordless Handset II
and
Local IP Cordless Handset II
-- DECT 6.0 technology; two-line,
32-character display; speakerphone; eight programmable feature keys. Also supports range-extending
Repeater units.
Features and support for standards
An ESI desktop IP phone looks and works like a regular digital phone as described on page F.2, but connects
from within the local premises via an IP network connection rather than twisted-pair cabling. If used remotely,
an ESI desktop IP phone connects to the IP Server 900 through the public internet. Each ESI desktop IP
phone derives its power from Power over Ethernet (PoE) via either a PoE switch on the local premises, or
through and individual PoE adapter. ESI desktop IP phones support the following features and standards:
•
Power via IEEE 802.3af Power over Ethernet (PoE).
•
Local or remote (off-site) operation.
•
Use the G.711 audio codec in local operation and the G.726 codec during remote operation. The
G.711 transfer rate is 206 Kbps; the G.726 transfer rate is 90 Kbps.
•
Use DHCP
2
to obtain an IP address:
–
In local operation DHCP can be provided by the IP Server 900 or an external server.
–
In remote operation the phone will use the DHCP server at the remote site to obtain its
addressing.
•
Complies with IEEE 802.1q and 802.1p (VLAN) Layer 2 switching and prioritization.
•
Complies with Layer 3 DiffServ (RFC 2475) Quality of Service (QoS) implementations.
Important:
Each ESI IP phone draws up to 7.25 watts3 at 48 volts DC; therefore, each advertises itself to a Power over
Ethernet switch as a Class 3 device per the 802.3af standard. Most PoE switches adhering to this standard
will provide up to 12.5 watts for each Class 3 device.
Notes:
When connecting an ESI desktop IP phone to a PoE source, the PoE cable
must
be connected to the jack
labeled
NETWORK
on the base of the phone. The jack labeled
PC
DOES NOT
support PoE.
ESI has tested each ESI desktop IP phone with several PoE sources. For a current list of tested devices,
consult the ESI Knowledge Base at
http://support.esiresellers.com
.
Important:
None of the IP phones listed in this section will work with ESI’s legacy IP E-Class or IVX
®
systems. Similarly,
previous IP Feature Phone models (including the Remote IP Feature Phone)
don’t
work with the IP Server 900
but, instead, are intended for use with only IP E-Class and appropriate IP-enabled IVX systems.
1
Supported only on software versions 25.1.2.5 and later; see
ESI Technical Update 335
.
2
Dynamic Host Configuration Protocol, an IP standard described in RFC 2131 (
http://www.ietf.org/rfc/rfc2131.txt
).
3
An ESI desktop IP phone’s power consumption takes into account an optional 60-Key Expansion Console.