at_cmd
error = at_cmd(ctx, NULL, NULL, NULL, "AT\r\n");
error = at_cmd(ctx, "+CPIN: READY", NULL, NULL, "AT+CPIN?\r\n");
error = at_cmd(ctx, "+CME ERROR", saveresp, &ra, "AT+CPIN?\r\n");
error = at_cmd(ctx, NULL, NULL, NULL, "AT+CPIN=\"%s\"\r\n",
error = at_cmd(ctx, "+CGDCONT", saveresp, &ra, "AT+CGDCONT?\r\n");
error = at_cmd(ctx, NULL, NULL, NULL,
at_cmd(ctx, NULL, NULL, NULL,
error = at_cmd(ctx, NULL, NULL, NULL, "AT_OWANCALL=%d,0,0\r\n",
at_cmd(ctx, NULL, NULL, NULL, "AT_OWANCALL=%d,0,0\r\n",