Did-Trk (Direct Inward Dial Trunk) - Avaya S8700 Maintenance Manual

For multi-connect configurations

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DID-TRK (Direct Inward Dial Trunk)

MO's Name (in

UU is the universal cabinet number (1–64 for ATM PNC, 1–44 for CSS PNC). C is the carrier

designation (A, B, C, D, or E). SS is the number of the slot where the circuit pack resides (01–21).

pp is the 2-digit port number (01, 02, 03 ...).

A MAJOR alarm on a trunk indicates that alarms on these trunks are not downgraded by the set

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

Many trunk problems are caused by incorrect settings of parameters on the

trunk group administration form. Settings must be compatible with the local

environment and with parameter settings on the far end. Refer to DEFINITY

Enterprise Communications Server Release 5.4 Administration and Feature

Description, 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 Dial trunks connect the switch to the CO, and allow outside parties

to call directly to an extension in the system. DID trunk circuit packs support eight

incoming-only ports. Each port provides an interface between the 2-wire analog

CO line and the 4-wire TDM bus on the switch.

DID Trunk Operation

The DID port receives three to five digits from the CO that are used to directly

connect an outside caller to the called station without assistance from an

attendant. For each call, the CO switch signals the system by opening and

closing individual DID loops (one of the eight ports), causing the starting or

stopping of loop current.

Initial SAT Command to

test port UUCSSpp l

test port UUCSSpp l

Full Name of MO

Issue 1 May 2002