If in this method You use some kind of cycle You can put a flag that shows You to interupt the cykle, something like:

****
** Add a timer in class

IF VARTYPE(loXMLObject) = [O]	
   this.StopCykle = .f.
   this.Timer.Interval = 60000 && 60 sec.
   lnRetVal = THIS.callreports(loXmlObject,loProposalRecord.Prop_ID,llCover,llUwInfo,llQuote, llFinalRate, llAlgorithm,                                         llAlgoDetail, llLOB, llSchedule, llApp, .F.,cPrintOption,cFileName,lcSendMail,lcUserName)
   this.Timer.Interval = 0


*** In Timer event
   this.StopCykle = .t.

*** In CallReports Method
   SCAN
       IF thisform.StopCykle
          RETURN .f.
       ENDIF
       .....
   ENDSCAN     

But I do not know how this method "CallReports" worked to suggest something more acurate