What is happening in step 8 of the SS7-VOIP Gateway Call Progress?

In step 8 of the SS7-VOIP Gateway Call Progress, the scenario is focused on the process that occurs after the initial call setup is initiated. At this stage, the destination Signaling Switching Point (SSP) is actively attempting to connect the call to the intended recipient, which involves ringing the destination subscriber's telephone set.

This step is critical because it signifies that the call has successfully reached the destination's network, and the ringing indicates that the system is waiting for the recipient to pick up. The importance of this action lies in the transition from establishing the call to engaging the called party, moving the entire communication process forward.

Other options refer to different states of the call lifecycle: hanging up is an end state, successful connection implies that the call is already completed, and putting the caller on hold is not a direct consequence of this step. Therefore, the ringing of the destination subscriber telephone set in step 8 illustrates a vital point in the call setup process.