bilalayub
Newbie level 3

i have to compare the data coming on RX of 89c51 from GSM MODEM with "ON"/"OFF"/"1"/"2"/"3"/"4"/"5" and set/reset other pins. but when i request the masage from the GSM MODEM it replies with all information of the masage, i.e sender number etc + masage contents. So how do i get the masage contents only from the masage? please help me any one.