Hardware Description and Reference for Avaya ... - Avaya Support

The Avaya 2500 and Avaya 2554 telephones have the following characteristics:
● The 2500 MMGN and 2554 MMGN telephones are manufactured without Positive
Disconnect and without a flash button. The 2500 YMPG and 2554 YMPG have Positive
Disconnect permanently enabled. When the flash button is pressed, access is provided to
switch features. When the switchhook is depressed, the call is automatically disconnected,
and a dial tone is provided for a completely new call. The bottom of older models has a
Positive Disconnect switch with ON and OFF positions:
- The ON position hangs up the telephone for approximately 2 seconds, even if the
switchhook depression is less. This prevents inadvertent switchhook flashes. To start
switchhook flash in this mode, press the flash button.
- In the OFF position, the switchhook functions normally.
● K-type handset
● All 2500-series telephones are equipped with a 12-button touchtone dial pad.
● All 2500-series telephones contain two jacks. The handset cord jack is on the left side of
the telephone. The line cord jack is on the right rear of the set.
● All 2554-series telephones have one jack and one mounting cord. The handset cord jack is
on the bottom of the telephone. The line cord is on the rear of the telephone to plug into
the wall outlet.
● A coiled 6-foot (1.82-meter) modular handset cord and a 7-foot (2.13-meter) modular line
cord are supplied with all four of these 2500-series model telephones. A 12-foot
(3.66-meter) handset cord and 14-foot (4.27-meter) and 25-foot (7.62-meter) line cords
are available as options. A coiled 6-foot (1.82-meter) modular handset cord and a
permanently-attached 4-inch (10.2 centimeter) modular mounting cord are supplied with
2554-series model telephones. A longer 12-foot (3.66 meter) handset cord is available as
an option.
● All 2500-series telephones have an electronic tone ringer. There is a three-position ringer
volume control on the bottom of the 2500 telephone and the side of the 2554 telephone.
● The 2500 YMPG, telephones can only be mounted on a desktop. They cannot be mounted
on the wall. The 2554 YMPG telephones are wall-mounted telephones. They cannot be
mounted on a desktop.
● All 2500-series telephones are available in black or cream.
● The tip and ring leads power all Avaya 2500- and 2554-series telephones. The telephones
do not require any external power supply.
● All Avaya 2500-series and 2554-series telephones can be used as an emergency station
during power failure transfer conditions. The 2554 sets can only be used as a power failure
set in a loop start environment. A 2500 set can be used as a power failure set in either a
loop start or a ground start environment. Use in a Ground Start environment requires the
optional Modular Ground Start button.
● The 2500 and 2554 telephones are FCC registered.
Issue 6 February 2007 341