Avaya 03-300430 User Manual

Note:

Many trunk problems are caused by incorrect settings of parameters on the trunk 
group administration screen. Settings must be compatible with the local 
environment and with parameter settings on the far end. Refer to Administrator 
Guide for Avaya Communication Manager, 03-300509, for information about how 
to administer trunks. The Application Notes section of that book shows the 
correct settings for administrable timers and other parameters on a 
country-by-country basis.

Direct inward and outward dial (DIOD) trunks are 2-wire analog lines to the CO which support 
the following services:

●

Both incoming and outgoing CO calls

●

DID trunk

●

DID trunk and 1-way outgoing DIOD

TN429 DIOD trunk circuit packs and MM711 Analog Media Modules provide eight ports for 
loop-start CO trunks and serve as an interface between the 2-wire analog CO line and the 
4-wire TDM bus on the switch.

Note:

 / 

 Although DIOD-TRK is provided for a G700 Media Gateway, 

DIOD-TRK only partially supports the MM711 Analog Media Module.

Idle State: Tip = ground, Ring = CO Battery

DIOD-TRK

MAJ

1

1. A MAJOR alarm on a trunk indicates that alarms on these trunks are not downgraded by 

set options and that at least 75 percent of the trunks in this trunk group are alarmed.

test port location 

DIOD Trunk

DIOD-TRK

MIN

test port location 

DIOD Trunk

DIOD-TRK

WRN

test port location 

DIOD Trunk