Failure Source Name and Failure Processing

Failure Source Name

A failure source name denotes the source of a call. The system can perform different failure processing
operations based on different call sources. When a call from a certain call source fails, the system can select a corresponding failure processing mode based on the failure source name.

Failure Processing

Failure processing refers to the processing of a call failure. If no failure processing data is configured, the system directly releases the call or plays the failure announcement to the caller by default in the case of a call failure.
If the default failure processing setting is to play the failure announcement to the caller, only several common failure announcements can be played, such as the busy tone, callee power-off announcement, or callee no reply announcement. For most call failures, the system directly releases the calls by default. In this case, a caller cannot know the real cause for the call failure, and may try to place calls again and again, which reduces the call completion rate of the system.
If the system performs a failure processing operation based on the setting when a call fails, for example, playing the failure announcement to the caller, sending USSD characters, reselecting a route automatically, or forwarding the call to a voice mailbox, the number of invalid calls can be reduced and the call completion rate can be increased.