path: root/openbsc/src/osmo-bsc/osmo_bsc_api.c
diff options
authorJacob Erlbeck <jerlbeck@sysmocom.de>2013-10-31 15:36:42 +0100
committerHolger Hans Peter Freyther <holger@moiji-mobile.com>2013-11-01 17:12:39 +0100
commitb1250312ba1cd9e86d77824769b6b90ea709b8e8 (patch)
treef52ca2bfe14cde8737d0802ce2bceeecc1b74971 /openbsc/src/osmo-bsc/osmo_bsc_api.c
parent24d3b91d46d8290af2189faada2d03a9dbdb43f5 (diff)
bsc/ussd: Send faked CM Service Accept before sending USSD
The MS do not show the USSD messages yet. This patch modifies the implementation to insert a CM Service Accept to finish the establishment of the MM connection according to 3GPP TS 04.10/3.2.1 before the USSD notification is sent. This fix has been tested with a Blackberry phone that has shown an ussd_grace_txt after rf_locked has been set to '1'. Without this patch, that message wasn't shown. The phone has sent a CC Setup and other messages before processing the channel release message sent by the BSC, but these messages have not been forwarded to the MSC (as expected). Ticket: OW#957 Sponsored-by: On-Waves ehf
Diffstat (limited to 'openbsc/src/osmo-bsc/osmo_bsc_api.c')
1 files changed, 3 insertions, 0 deletions
diff --git a/openbsc/src/osmo-bsc/osmo_bsc_api.c b/openbsc/src/osmo-bsc/osmo_bsc_api.c
index 675bbb20e..eca253505 100644
--- a/openbsc/src/osmo-bsc/osmo_bsc_api.c
+++ b/openbsc/src/osmo-bsc/osmo_bsc_api.c
@@ -123,6 +123,9 @@ static void bsc_send_ussd_notification(struct gsm_subscriber_connection *conn,
+ LOGP(DMSC, LOGL_INFO, "Sending CM Service Accept\n");
+ gsm48_tx_mm_serv_ack(conn);
LOGP(DMSC, LOGL_INFO, "Sending USSD message: '%s'\n", text);
gsm0480_send_ussdNotify(conn, 1, text);