diff --git a/include/osmocom/gsm/protocol/gsm_08_08.h b/include/osmocom/gsm/protocol/gsm_08_08.h
index 60b968123..db5f7fa28 100644
--- a/include/osmocom/gsm/protocol/gsm_08_08.h
+++ b/include/osmocom/gsm/protocol/gsm_08_08.h
@@ -536,3 +536,31 @@ struct gsm0808_cell_id_list {
 	uint16_t id_list_lac[CELL_ID_LIST_LAC_MAXLEN];
 	unsigned int id_list_len;
 };
+
+/* TS 48.008 3.2.2.116 */
+enum gsm0808_lcls_config {
+	GSM0808_LCLS_CFG_BOTH_WAY					= 0x00,
+	GSM0808_LCLS_CFG_BOTH_WAY_AND_BICAST_UL				= 0x01,
+	GSM0808_LCLS_CFG_BOTH_WAY_AND_SEND_DL				= 0x02,
+	GSM0808_LCLS_CFG_BOTH_WAY_AND_SEND_DL_BLOCK_LOCAL_DL		= 0x03,
+	GSM0808_LCLS_CFG_BOTH_WAY_AND_BICAST_UL_SEND_DL			= 0x04,
+	GSM0808_LCLS_CFG_BOTH_WAY_AND_BICAST_UL_SEND_DL_BLOCK_LOCAL_DL	= 0x05,
+};
+
+/* TS 48.008 3.2.2.117 */
+enum gsm0808_lcls_control {
+	GSM0808_LCLS_CSC_CONNECT					= 0x00,
+	GSM0808_LCLS_CSC_DO_NOT_CONNECT					= 0x01,
+	GSM0808_LCLS_CSC_RELEASE_LCLS					= 0x02,
+	GSM0808_LCLS_CSC_BICAST_UL_AT_HANDOVER				= 0x03,
+	GSM0808_LCLS_CSC_BICAST_UL_AND_RECV_DL_AT_HANDOVER		= 0x04,
+};
+
+/* TS 48.008 3.2.2.119 */
+enum gsm0808_lcls_status {
+	GSM0808_LCLS_STS_NOT_YET_LS		= 0x00,
+	GSM0808_LCLS_STS_NOT_POSSIBLE_LS	= 0x01,
+	GSM0808_LCLS_STS_NO_LONGER_LS		= 0x02,
+	GSM0808_LCLS_STS_REQ_LCLS_NOT_SUPP	= 0x03,
+	GSM0808_LCLS_STS_LOCALLY_SWITCHED	= 0x04,
+};