Program T1/D4 Trunks

Before You Begin

Ensure that:

For a description of T1/D4 signaling and features, refer to T1/D4 Description.

For instructions on how to configure T1/E1 trunk resiliency, refer to the Resiliency guide on the Mitel documentation web site.

Programming

To program T1/D4 trunks:

  1. Link Descriptor Assignment form
    Enter "T1D4" in the Integrated Digital Access field.
    T1 supports CSU mode and DSX-1 mode. 

  2. Digital Link Assignment form
    Enter the digital link descriptor number programmed in step 1.

  3. Class of Service Options Assignment form
    Set the ANI/DNIS ISDN Number Delivery Trunk field to "Yes" (if provided).

  4. Complete one of the following:

  5. Digital CO Trunk Circuit Descriptor Assignment form

  6. Digital DID Trunk Circuit Descriptor Assignment form

  1. Trunk Service Assignment form
    Enter the COS number programmed in step 3.
    Complete the Non-dial in Trunks Answer Point fields (CO and E&M).
    Complete the Dial in Trunks: Incoming Digit Modification fields (DID).

  2. Digital Trunk Assignment form
    Enter a Trunk Number, Trunk Service Number (from step 5), Circuit Descriptor (from step 4), and Interconnect Number.

  3. Network Synchronization form (optional)
    Assign a source connection to a Network Source Clock.

  4. Trunk Group Assignment form
    For outgoing trunks, assign the trunk number (from step 6) to a trunk group.