g_at_chat_send(data->modem, "AT&C0", NULL, NULL, NULL, NULL);
g_at_chat_send(data->aux, "AT&C0", NULL, NULL, NULL, NULL);
+ /*
+ * Ensure that the modem is using GSM character set and not IRA,
+ * otherwise weirdness with umlauts and other non-ASCII characters
+ * can result
+ */
+ g_at_chat_send(data->modem, "AT+CSCS=\"GSM\"", none_prefix,
+ NULL, NULL, NULL);
+ g_at_chat_send(data->aux, "AT+CSCS=\"GSM\"", none_prefix,
+ NULL, NULL, NULL);
+
/* Read PCB information */
g_at_chat_send(data->aux, "AT+ZPCB?", none_prefix, NULL, NULL, NULL);