For example, a call that is arriving at a VRU direct from a public network where the VRU receives no response from the ICM in response to its New_Call request in a timeout period. The VRU then attempts to receive a reason for the failure from the ICM. Upon receiving nothing, the VRU runs its default call logic (this could be to play the user a technical-difficulties message) before it sends a failure message and releases the call.
Figure 1. TimeOut during dialog creation (for a state table application)
