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Installation Guide
Rio Rancho, NM 21
When an incoming call is received the Ringing
LED (on both the Tel/Codec Tab and the Activities
Tab) will blink until the number of rings has been
achieved, then extinguish to indicate that the
Telephone Interface has connected.
4.) Click “Enable Auto Disconnect” to configure the
DMTH4 so that the telephone interface automati-
cally disconnects when it senses that the call has
be terminated by the calling party.
Connecting to the CODEC Interface
using the Activity Tab
It is assumed that the DMTH4 CODEC input and
output signals on the rear panel have been connected
to the video codec and that gain for each has been
adjusted as needed.
1.) Click the “Connect” button to enable the connec-
tion to the codec interface. The LED will light and
the “Connect” button will change to “Disconnect.”
2.) To terminate the connection, click the “Disconnect”
button.
Codec Interface Tab
Tel/Codec Tab
Connect LED
Connect