anchor.diff:  	    NewBranchData = {{NewTimerList, TimerSeq}, NewTransactionList},
   	    act_on_new_state(Branch, NewBranchData, Id, OldState, confirmed);
   	_ ->
  -	    logger:log(error, "~s: Received ACK to non-INVITE request ~s ~s - ignoring",
  -			[Branch, AckToMethod, sipurl:print(AckToURI)]),
  +	    logger:log(debug, "~s: Received ACK to non-INVITE request ~s ~s (response being ACKed is ~p ~s) - ignoring",
  +			[Branch, AckToMethod, sipurl:print(AckToURI), Status, Reason]),
   	    BranchData
       end.
       
  
positive.code: 	    {Status, Reason, _, _} = Response,
  	    {OrigReqMethod, OrigReqURI, OrigReqHeader, _} = OrigRequest,
  	    logger:log(normal, "~s: Sending of ~p ~s (response to ~s ~s) timed out after ~p seconds",
  		    	       [Branch, Status, Reason, OrigReqMethod, sipurl:print(OrigReqURI), Timeout / 1000]),
  	    Transaction = transactionlist:get_transaction_using_header(OrigReqHeader, TransactionList),
  	    Id = transactionlist:extract_id(Transaction),
  	    {quit};
  
negative.code:     {TimerData, TransactionList} = BranchData,
      {TimerList, TimerSeq} = TimerData,
      AckToRequest = transactionlist:extract_request(AckToTransaction),
      AckToResponse = transactionlist:extract_response(AckToTransaction),
      {Status, Reason, _, _} = AckToResponse,
      OldState = transactionlist:extract_state(AckToTransaction),
      Id = transactionlist:extract_id(AckToTransaction),
      {AckToMethod, AckToURI, _, _} = AckToRequest,
      logger:log(normal, "~s: Response ~p ~s to request ~s ~s ACK-ed", [Branch, Status, Reason, AckToMethod, sipurl:print(AckToURI)]),
      case AckToMethod of
  	"INVITE" ->
  	    logger:log(debug, "~s: Received ACK, cancelling resend timers for response ~p ~s (to request ~s ~s) and entering state 'confirmed'",
  	    		[Branch, Status, Reason, AckToMethod, sipurl:print(AckToURI)]),
  	    NewTimerList = siptimer:cancel_timers_with_appid({resendresponse, Id}, TimerList),
  	    NewTransaction1 = transactionlist:set_acked(AckToTransaction, true),
  	    NewTransaction = transactionlist:set_state(NewTransaction1, confirmed),
  