Trunk Circuit Descriptor - Digital DID

Purpose:

The Digital DID Trunk Circuit Descriptor Assignment form is used to assign signaling and timing parameters to groups of DS1 DID trunk circuits using channel associated signaling (CAS).

Use this form when performing the following tasks:

Field Descriptions

Parameter

Description

Default Value

Number

Enter a number from 1 to 32 to uniquely identify each entry.

Blank

Ignore Far End Disconnect

Select "Yes" or "No" to indicate whether the trunks are to ignore or respond to a far-end disconnect signal.

No

Release Acknowledge Timer

Enter the amount of time the system will wait for a release acknowledgement from the far-end. Allowed values are 40 - 9000 units (200 ms - 450 sec), each unit being equal to 50 ms.

(80 UNITS) 4s

Address Signaling

Select the appropriate value to indicate the type of signaling used.

 

  • Note: When systems are connected via T1/D4, the address signaling must match on either end of the connection. If one end is programmed as Loop and the other as DTMF, the dialed digits will not be translated by the receiving system, and the call will fail.

DTMF

Incoming Start Type

Select the appropriate value to indicate whether the trunk is immediate, delay dial, or wink start on incoming calls. Applies only to DS1 DID trunks.

Wink

Far End Connection

Not applicable to this release.

Local Office

Flash Timer

Enter a value between "200" and "700" milliseconds in increments of 50 milliseconds. This timer specifies the duration of the single trunk flash or each of the flashes for a double trunk flash. For a double flash, the time between flashes is hard-coded at one second.

300 ms