I am using Q2686 module with external controller. To send Q2686 gsm module to power down mode ( because my basic aim is to save power as device is battery operated and at remote location) I am sending AT+CPOF command from controller to wavecom module. Now to wakeup GSM module I am sending AT+CFUN=1 command from controller and after that I am making a data call using ATD command. The problem here is that I am getting no carrier signal after making a data call. So why I am getting such response from modem. Whether I am doing something wrong.
Because normally when I am initiating a data call it works fine. Or please specify the correct procedure to bring the Q2686 gsm module into sleep mode back into wakeup or normal mode.
Your reply will be helpful to me.