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Chapter 12: Trunk Configuration
MAXCS ACC 6.7 Administration Manual 157
Figure 83. Triton Analog Trunk GS/LS Properties window
Note that you can use Apply to in this dialog box to apply changes to other trunks of
the same type.
Parameter Description
Interface Type Select the type of trunk that will interface with this trunk
channel:
•
Loop Start Trunk
•
Ground Start Trunk
Incoming Ring Single —Default setting for North America
Double —For countries using Ring-Ring-Silent type of ring
pattern
Impedance The resistance of electrical current to alternating current,
measured in Ohms. Impedance occurs when power or signal
is transferred from one circuit to another. When a trunk
interface impedance is greatly mismatched with the CO
analog line, it may result in static noise and echo heard by IP
phone users. The system automatically selects the
impedance profile that best matches the Triton trunk
interface with the CO. In the rare case where you are not
getting the best match, you can disable this feature by
checking
Disable Impedance Match During System
Startup , and you can set the Impedance manually.