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-rw-r--r--src/osmo-bsc/gsm_data.c14
1 files changed, 14 insertions, 0 deletions
diff --git a/src/osmo-bsc/gsm_data.c b/src/osmo-bsc/gsm_data.c
index 0f062d25a..6c8bdf3b5 100644
--- a/src/osmo-bsc/gsm_data.c
+++ b/src/osmo-bsc/gsm_data.c
@@ -757,6 +757,20 @@ struct gsm_bts *gsm_bts_alloc(struct gsm_network *net, uint8_t bts_num)
INIT_LLIST_HEAD(&bts->abis_queue);
INIT_LLIST_HEAD(&bts->loc_list);
+ /* Legacy compat: we used to not check the BTS codec-pref settings upon assignment until we added
+ * checks for the BTS codec-pref in osmo-bsc 5bc43cd107597b78f701f77c7fd4cce8f923dce5, change-id
+ * I285234e9c81de74d9fb9907fca2c443b08537435, "codec_pref: check bts codec support". From that
+ * commit onwards, config setups without a 'codec-pref' potentially stop working, because with no
+ * codec-pref settings, now only FR is permitted, while before the patch, we would allow any
+ * codecs as long as MSC and the overall BSC config agree on them. So, upon BTS initialization,
+ * enable all codecs. These get reset to a more fine grained selection IF a 'codec-pref' appears
+ * in the config file (see bsc_vty.c). */
+ bts->codec = (struct bts_codec_conf){
+ hr = 1,
+ efr = 1,
+ amr = 1,
+ };
+
return bts;
}