diff --git a/openbsc/src/libmsc/gsm_04_08.c b/openbsc/src/libmsc/gsm_04_08.c
index 58f97f4..db6fc5f 100644
--- a/openbsc/src/libmsc/gsm_04_08.c
+++ b/openbsc/src/libmsc/gsm_04_08.c
@@ -2013,6 +2013,10 @@
 			     TLVP_VAL(&tp, GSM48_IE_CC_CAP)-1);
 	}
 
+	/* IMSI of called subscriber */
+	strncpy(call_conf.imsi, trans->subscr->imsi,
+		sizeof(call_conf.imsi)-1);
+
 	new_cc_state(trans, GSM_CSTATE_MO_TERM_CALL_CONF);
 
 	return mncc_recvmsg(trans->subscr->net, trans, MNCC_CALL_CONF_IND,