Do you intend to listen to the GPS or the GSM? Both is the wrong answer. Only one instance of SoftwareSerial can listen at a time. Data sent to the pins that the other instance is monitoring evaporates in the ether.
Do you intend to listen to the GPS or the GSM? Both is the wrong answer. Only one instance of SoftwareSerial can listen at a time. Data sent to the pins that the other instance is monitoring evaporates in the ether.