--- a/src/mm-broadband-modem.c	2014-07-24 23:05:48.783507503 +0600
+++ b/src/mm-broadband-modem.c	2014-07-24 23:06:28.151505856 +0600
@@ -9507,6 +9507,7 @@
     self->priv->modem_3gpp_registration_state = MM_MODEM_3GPP_REGISTRATION_STATE_UNKNOWN;
     self->priv->modem_3gpp_cs_network_supported = TRUE;
     self->priv->modem_3gpp_ps_network_supported = TRUE;
+    self->priv->use_unencoded_ussd = TRUE;
     self->priv->modem_3gpp_eps_network_supported = FALSE;
     self->priv->modem_3gpp_ignored_facility_locks = MM_MODEM_3GPP_FACILITY_NONE;
     self->priv->modem_cdma_cdma1x_registration_state = MM_MODEM_CDMA_REGISTRATION_STATE_UNKNOWN;
