dexter has uploaded this change for review. ( https://gerrit.osmocom.org/c/osmo-bsc/+/31258 )
Change subject: bsc_subscriber_conn_fsm: use subslot 0 in case of E1 full subslot ......................................................................
bsc_subscriber_conn_fsm: use subslot 0 in case of E1 full subslot
In classic E1 based GSM networks the audio is usually transfered through 16bkps I.460 subslots while 4 16kbps subslots are multiplexed into one E1 timeslot. However, there may be setups where still 16kbps subslots are used, but with 1 instead of 4 channels per timeslot. In those cases the bit offset is 0, while the rate is still 16kbps.
Change-Id: I0d2bc44acaa8e5a28cccfdf7cfb945bf14a4ed30 Related: OS#5198 --- M src/osmo-bsc/bsc_subscr_conn_fsm.c 1 file changed, 7 insertions(+), 1 deletion(-)
git pull ssh://gerrit.osmocom.org:29418/osmo-bsc refs/changes/58/31258/1
diff --git a/src/osmo-bsc/bsc_subscr_conn_fsm.c b/src/osmo-bsc/bsc_subscr_conn_fsm.c index a19be0c..5d4bb51 100644 --- a/src/osmo-bsc/bsc_subscr_conn_fsm.c +++ b/src/osmo-bsc/bsc_subscr_conn_fsm.c @@ -721,9 +721,15 @@ /* use dynamic RTPBRIDGE endpoint allocation in MGW */ epname = mgcp_client_rtpbridge_wildcard(mgcp_client); else { + uint8_t i460_bit_offs; + if (for_lchan->ts->e1_link.e1_ts_ss == E1_SUBSLOT_FULL) + i460_bit_offs = 0; + else + i460_bit_offs = for_lchan->ts->e1_link.e1_ts_ss*2; + epname = mgcp_client_e1_epname(conn, mgcp_client, for_lchan->ts->e1_link.e1_nr, for_lchan->ts->e1_link.e1_ts, 16, - for_lchan->ts->e1_link.e1_ts_ss*2); + i460_bit_offs); }
conn->user_plane.mgw_endpoint =