Can not call GPRS Shield


I am not able to call my GPRS shield. It just hangs up. If I type AT then try again, it says the caller is not available at the moment.
I can make a call with it, a can send and receive message. But I can not call it. Why is that?
(Yesterday if I called the shield the monitor printed out “RING”). But now nothing. :frowning:

#include <SoftwareSerial.h>
SoftwareSerial mySerial(7, 8);
void setup()
  mySerial.begin(19200);               // the GPRS baud rate   
  Serial.begin(19200);                 // the GPRS baud rate   
void loop()
  if (mySerial.available())
  if (Serial.available())


OK I solved it by reseting with sending the command “AT&F”

:slight_smile: Enjoy it.