The screen capture below displays how to enable the 2020 IMG so that if an SS7 link goes Out Of Service that the associated CIC's stay in service either a set amount of time, or till certain conditions are met. Screen capture below was taken from 2020 IMG set up as an T1 box (ansi). The procedure is the same for E1 (itu).




Disable (Default) - Functionality is same as previous software. If Signaling Link goes Out Of Service, then the associated CIC's will go Out Of Service as well.

Enable - If signaling link goes Out Of Service all associated CIC's which are in the idle state will go Out Of Service. If any CIC's are in either the ringing or connected state the CIC's will not go Out Of Service until a later subsequent condition occurs as described below.