SIPSorcery.AppServer.DialPlan.ForkCall.CallLegCompleted C# (CSharp) Method

        private void CallLegCompleted()
        {
            try
            {
                if (!m_callAnswered && !m_commandCancelled)
                {
                    if (m_switchCalls.Count > 0 || m_delayedCalls.Count > 0)
                    {
                        // There are still calls on this leg in progress.

                        // If there are no current calls then start the next delayed one.
                        if (m_switchCalls.Count == 0)
                        {
                            SIPCallDescriptor nextCall = null;
                            lock (m_delayedCalls)
                            {
                                foreach (SIPCallDescriptor call in m_delayedCalls)
                                {
                                    if (nextCall == null || nextCall.DelaySeconds > call.DelaySeconds)
                                    {
                                        nextCall = call;
                                    }
                                }
                            }

                            if (nextCall != null)
                            {
                                nextCall.DelayMRE.Set();
                            }
                        }
                    }
                    else if (m_priorityCallsQueue.Count != 0 && !m_callAnswered)
                    {
                        List<SIPCallDescriptor> nextPrioritycalls = m_priorityCallsQueue.Dequeue();
                        Start(nextPrioritycalls);
                    }
                    else if (CallFailed != null)
                    {
                        // No more call legs to attempt, or call has already been answered or cancelled.
                        if (m_lastFailureStatus != SIPResponseStatusCodesEnum.None)
                        {
                            CallFailed(m_lastFailureStatus, m_lastFailureReason, null);
                        }
                        else
                        {
                            CallFailed(SIPResponseStatusCodesEnum.TemporarilyUnavailable, "All forwards failed.", null);
                        }
                    }
                }
            }
            catch (Exception excp)
            {
                logger.Error("Exception CallLegCompleted. " + excp);
            }
        }