--- plugins/mm-modem-huawei-gsm.c.orig	2011-11-07 20:28:48.722960314 +0200
+++ plugins/mm-modem-huawei-gsm.c	2011-11-07 21:25:48.340127274 +0200
@@ -906,7 +906,7 @@
     guint32 unpacked_len;
 
     bin = utils_hexstr2bin (reply, &bin_len);
-    unpacked = gsm_unpack ((guint8*)bin, bin_len, 0, &unpacked_len);
+    unpacked = gsm_unpack ((guint8*)bin, (bin_len * 8) / 7, 0, &unpacked_len);
     utf8 = (char*)mm_charset_gsm_unpacked_to_utf8 (unpacked, unpacked_len);
 
     g_free (bin);