diff --git a/openbsc/src/libbsc/abis_om2000.c b/openbsc/src/libbsc/abis_om2000.c
index ae23e50..6105fec 100644
--- a/openbsc/src/libbsc/abis_om2000.c
+++ b/openbsc/src/libbsc/abis_om2000.c
@@ -1417,6 +1417,10 @@
 		msgb_tv_put(msg, OM2K_DEI_LSC_FILT_TIME, 10);	/* units of 100ms */
 		msgb_tv_put(msg, OM2K_DEI_CALL_SUPV_TIME, 8);
 		msgb_tv_put(msg, OM2K_DEI_ENCR_ALG, 0x00);
+		/* Not sure what those below mean */
+		msgb_tv_put(msg, 0x9e, 0x00);
+		msgb_tv_put(msg, 0x9f, 0x37);
+		msgb_tv_put(msg, 0xa0, 0x01);
 		break;
 	}