code: public void remoteServerTransactionRemoval(String transactionId) {
  		final String txId = transactionId.toLowerCase();
  		// note we don't want a dialog terminated event, thus we need to go directly to map removal
  		// assuming it's a confirmed dialog there is no chance it is on early dialogs too
  		if (getStackLogger().isLoggingEnabled(StackLogger.TRACE_DEBUG)) {
  			getStackLogger().logDebug("sipStack " + this + 
  					" remote Server Transaction Removal of transaction Id : " + txId);
  		}
  		// the transaction id is set to lower case in the cache so it might not remove it correctly
  		SIPServerTransaction sipServerTransaction = super.serverTransactionTable.remove(txId);
  		if (sipServerTransaction != null) {
  			super.removeFromMergeTable(sipServerTransaction);
  			super.removePendingTransaction(sipServerTransaction);
  			super.removeTransactionPendingAck(sipServerTransaction);
  		}
  	}
docs: /*
  (non-Javadoc)
  @see org.mobicents.ha.javax.sip.ClusteredSipStack#remoteServerTransactionRemoval(java.lang.String)