how can you use " CALL: DB "ATD03139791313;",13,10,0 " instruction
in your program CALL is a keyword, did this program not give your error??????????????????
---------- Post added at 16:00 ---------- Previous post was at 15:56 ----------
even if you replace the CALL: with any other variable name....
the ATD command is getting called infinetely , so how can modem execute a repeated command so fast...
so instead of sjmp start , use sjmp $ and try to execute the program...