hi all.i had same problem of | Microcontroller › 8051 › Interfacing GSM module with Microcontroller › hi all.i had same problem of August 3, 2013 at 4:58 pm #10267 jayParticipant hi all. i had same problem of not calling. please download atcommand set pdf file from net and do as guided in it. if still not working please check your pwr supply. it must be atleast 2 amp for calling.
