public ProceedingState(NonInviteClientTransaction transaction) : base(transaction)
 {
 }
 protected NonInviteClientTransactionState(NonInviteClientTransaction transaction)
 {
     _transaction = transaction;
 }
 public TryingState(NonInviteClientTransaction transaction) : base(transaction)
 {
 }
 protected NonInviteClientTransactionState(NonInviteClientTransaction transaction)
 {
     _transaction = transaction;
 }
 public TryingState(NonInviteClientTransaction transaction)
     : base(transaction)
 {
 }
 public ProceedingState(NonInviteClientTransaction transaction)
     : base(transaction)
 {
 }