Telematrix SP400 User Manual
Page 23

23
Headset Feature
 
The Spectrum PLUS
TM
is equipped with a
separate port for plugging in an optional 
headset. The port is located on the bot-
tom of the base unit. The TeleMatrix 
FreeSpeech
TM
Talk Feature is a unique
TeleMatrix feature that allows the user the 
freedom to “toggle” between the headset, 
handset and speakerphone modes during 
a conversation. 
 
When the “HEADSET ON/OFF” key is 
ON, pressing the “SPEAKER” key will ac-
tivate the speaker and disconnect the 
headset line automatically. This feature 
avoids having to use the hookswitch/
handset to process telephone calls while 
in headset mode. 
 
The headset can be purchased from a 
TeleMatrix distributor. There are many 
varieties of headset models available. 
Installing a Headset
 
The headset port is located on the bottom 
side of the telephone base. 
 
Plug the modular end of the headset cord 
into the modular port of the telephone 
labeled “HEADSET” (figure 1). 
 
Press the “HEADSET ON/OFF” key to 
activate the headset. The LED above the 
key will illuminate to indicate that the 
headset is on (figure 2). 
NOTE: An external amplifier is NOT
recommended. The phone has a built
in amplifier.
!
Figure 1
Figure 2
