Failure Cause Value 16Failure Cause Code CV_TEMPORARY_FAILUREFailure Cause Explanation It indicates a temporary failure.Failure Cause Description A temporary failure indicates the following cases:1. The CCB module receives invalid CONNECT_ACK message when it is in the DP1-DP8, DP9A, DP9B, DP10, or DP12 state, or the CCB modules fails to save the CONNECT_ACK message.2. The CCB module fails to save the CONNECT_ACK message when the module is in the ALERTING state.3. The CCB module fails to save the COMBINE message, or receives COMBINE failure message, or does not receive the COMBINE_ACK message within a specified period.4. The CCB module fails to save the CONNECT message.Application Description This cause value is returned because of the message saving failure. Solution 1. Trace internal messages to check whether the message exchange is normal during the call processing.2. Contact R&D engineers to identify the problem.