3 is the latest approved patch-set.
No files were changed between the latest approved patch-set and the submitted one.


ASCI: Forward UPLINK RELEASE on dedicated channel to MSC

If the phone is (still) on a dedicated channel, it may release the
uplink in case of a voice group call. It depends on the MSC how to
handle the situation. Currently it releases the call.

Generally the phone is assigned to the VGCS/VBS channel before it
releases the uplink.

Change-Id: Ib91c282ed36e82b38c0e738533e3a421de81a9a8
Related: OS#4852
---
M src/osmo-bsc/gsm_04_08_rr.c
1 file changed, 23 insertions(+), 0 deletions(-)

diff --git a/src/osmo-bsc/gsm_04_08_rr.c b/src/osmo-bsc/gsm_04_08_rr.c
index 6d74e43..78a4f45 100644
--- a/src/osmo-bsc/gsm_04_08_rr.c
+++ b/src/osmo-bsc/gsm_04_08_rr.c
@@ -1170,6 +1170,12 @@
 			 * according to spec */
 			bsc_dtap(conn, link_id, msg);
 			break;
+		case GSM48_MT_RR_UPLINK_RELEASE:
+			/* When the calling phone releases the uplink before it has been assigned to the group
+			 * channel, it will send an UPLINK RELEASE message on the dedicated channel. The MSC
+			 * has to take care of it. (assigning the phone to the group channel) */
+			bsc_dtap(conn, link_id, msg);
+			break;
 		default:
 			/* Drop unknown RR message */
 			LOG_LCHAN(msg->lchan, LOGL_NOTICE, "Unknown RR message: %s\n",

