File content as of revision 45:5d8feae26fe3:

#include "mbed.h"
#include "rtos.h"
#include "MDM.h"
#include "DeviceInfo.h"
#include "MbedAgent.h"
#include "apndb.h"

int main()
{
    MDMParser::DevStatus devStatus;
    DeviceIO io;

    io.lcdPrint("DEVICE INIT");

    MDMSerial mdm;
    //mdm.setDebug(4);

    if (!mdm.init(NULL, &devStatus)) {
        puts("Modem initialization failed. Check your PIN number.");
        io.lcdPrint("MODEM INIT FAILURE");
        return 1;
    }

    io.lcdPrint("IMEI", devStatus.imei);

    // print out basic device data
    printf("IMEI: %s\n", devStatus.imei);
    printf("IMSI: %s\n", devStatus.imsi);

    puts("Searching for login...");
    apndb_t *apn = apndb_get(devStatus.imsi);
    if (apn == NULL) {
        puts("No APN found. Stop.");
        io.lcdPrint("NO APN FOUND", devStatus.imsi);
        return 1;
    }
    
    if (!mdm.registerNet()) {
        puts("Network registration failed.");
        io.lcdPrint("NETWORK REG ERROR");
        return 1;
    }

    printf("Carrier: %s\n", apn->carrier);
    puts("Joining Network.");
    io.lcdPrint("JOINING CARRIER", apn->carrier);
    if (mdm.join(apn->apn) == NOIP) {
        io.lcdPrint("NETWORK JOIN FAILURE");
        puts("Could not join network. Make sure chosen carrier is correct and no credentials are required.");
        return 1;
    }
    
    DeviceInfo deviceInfo(mdm, devStatus);
    MbedAgent agent(io, mdm, deviceInfo);

    puts("Starting agent ...");
    if (!agent.init()) {
        io.lcdPrint("AGENT INIT FAILURE");
        puts("Initialization failure.");
        mdm.disconnect();
        return 1;
    }
    
    size_t tries = 3;

    do {
        io.lcdPrint("RUN AGENT");
        puts("Running agent ...");

        if (!agent.run()) {
            puts("Agent failure.");
            continue;
        } else {
            break;
        }
    } while (--tries > 0);
    
    mdm.disconnect();
    return 0;
}