diff --git a/openbsc/src/libbsc/bsc_dyn_pdch.c b/openbsc/src/libbsc/bsc_dyn_pdch.c
new file mode 100644
index 0000000..717880b
--- /dev/null
+++ b/openbsc/src/libbsc/bsc_dyn_pdch.c
@@ -0,0 +1,42 @@
+/* Dynamic PDCH initialisation implementation shared across NM and RSL */
+
+/* (C) 2016 by sysmocom s.f.m.c. GmbH <info@sysmocom.de>
+ * All Rights Reserved
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as published by
+ * the Free Software Foundation; either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+#include <osmocom/core/logging.h>
+#include <openbsc/debug.h>
+#include <openbsc/gsm_data.h>
+#include <openbsc/abis_rsl.h>
+
+void dyn_pdch_init(struct gsm_bts_trx_ts *ts)
+{
+	int rc;
+
+	if (ts->pchan == GSM_PCHAN_TCH_F_PDCH) {
+		LOGP(DRSL, LOGL_DEBUG, "trying to PDCH ACT on"
+		     " BTS %u TRX %u TS %u\n",
+		     ts->trx->bts->nr, ts->trx->nr, ts->nr);
+		rc = rsl_ipacc_pdch_activate(ts, 1);
+		if (rc != 0) {
+			LOGP(DRSL, LOGL_ERROR,
+			     "Failed to activate PDCH on"
+			     " BTS %u TRX %u TS %u: %d\n",
+			     ts->trx->bts->nr, ts->trx->nr, ts->nr, rc);
+		}
+	}
+}