jolly has uploaded this change for review. ( https://gerrit.osmocom.org/c/osmo-bsc/+/33609 )

Change subject: ASCI: Send UPLINK RELEASE on dedicated channel to MSC ......................................................................

ASCI: Send 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(-)

git pull ssh://gerrit.osmocom.org:29418/osmo-bsc refs/changes/09/33609/1

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",