Ensure that Network Services Units (Universal, R2, and BRI) or required modules (Dual T1/E1 Framer, Quad BRI Framer) are installed and programmed. Refer to Program an NSU or Program Controller Modules for more information.
Ensure that Interconnect Restriction and Intercept Handling are programmed for each trunk.
To program digital trunks:
Select the type of trunk you are programming and complete the forms: