anchor.diff:      LogTag = State#state.logtag,
       case siptimer:get_timers_appsignal_matching({invite_expire}, State#state.timerlist) of
   	[] ->
  -	    logger:log(error, "~s: Received provisional response ~p to INVITE request, but no "
  +	    logger:log(error, "~s: Received 1xx response ~p to INVITE request, but no "
   		       "'invite_expire' (Timer C) timer found", [LogTag, Status]),
   	    logger:log(debug, "~s: TimerList where I could not find an 'invite_expire' (Timer C) timer :~n~p",
   		       [LogTag, siptimer:debugfriendly(State#state.timerlist)]),
  
positive.code: 		TimerDK = 1,
  		DKDesc = "terminate client transaction " ++ sipurl:print(URI) ++ " (Timer D or Timer K)",
  		add_timer(TimerDK, DKDesc, {terminate_transaction}, NewState1);
  	    _ ->
  		case Method of
  		    "INVITE" ->
  			TimerD = 32 * 1000,
  
negative.code:     NewState =
  	case siptimer:get_timer(TRef, State#state.timerlist) of
  	    none ->
  		logger:log(error, "~s: Unknown timer (~p:~p) fired! Ignoring.", [LogTag, TRef, TDesc]),
  		logger:log(debug, "~s: Unknown timer (~p:~p) fired! Ignoring. SIP state '~p', Timerlist :~n~p",
  			   [LogTag, TRef, TDesc, State#state.sipstate, State#state.timerlist]),
  		State;
  	    Timer ->
  