diff --git a/src/gprs_rlcmac.h b/src/gprs_rlcmac.h
index 71ff6086..55aef9d7 100644
--- a/src/gprs_rlcmac.h
+++ b/src/gprs_rlcmac.h
@@ -221,12 +221,6 @@ struct gprs_rlcmac_tbf *tbf_alloc(struct gprs_rlcmac_tbf *old_tbf,
 	enum gprs_rlcmac_tbf_direction dir, uint8_t tfi, uint8_t trx,
 	uint8_t first_ts, uint8_t ms_class, uint8_t single_slot);
 
-int alloc_algorithm_a(struct gprs_rlcmac_tbf *old_tbf,
-	struct gprs_rlcmac_tbf *tbf, uint32_t cust);
-
-int alloc_algorithm_b(struct gprs_rlcmac_tbf *old_tbf,
-	struct gprs_rlcmac_tbf *tbf, uint32_t cust);
-
 struct gprs_rlcmac_tbf *tbf_by_tfi(uint8_t tfi, uint8_t trx, uint8_t ts,
         enum gprs_rlcmac_tbf_direction dir);
 
@@ -324,6 +318,16 @@ struct gprs_rlcmac_paging *gprs_rlcmac_dequeue_paging(
 
 struct msgb *gprs_rlcmac_send_packet_paging_request(
 	struct gprs_rlcmac_pdch *pdch);
+
+extern "C" {
+#endif
+int alloc_algorithm_a(struct gprs_rlcmac_tbf *old_tbf,
+	struct gprs_rlcmac_tbf *tbf, uint32_t cust);
+
+int alloc_algorithm_b(struct gprs_rlcmac_tbf *old_tbf,
+	struct gprs_rlcmac_tbf *tbf, uint32_t cust);
+#ifdef __cplusplus
+}
 #endif
 
 #endif // GPRS_RLCMAC_H
diff --git a/src/pcu_vty.c b/src/pcu_vty.c
index 2413f21d..e5d37658 100644
--- a/src/pcu_vty.c
+++ b/src/pcu_vty.c
@@ -86,6 +86,11 @@ static int config_write_pcu(struct vty *vty)
 	else if (bts->force_llc_lifetime)
 		vty_out(vty, " queue lifetime %d%s", bts->force_llc_lifetime,
 			VTY_NEWLINE);
+	if (bts->alloc_algorithm == alloc_algorithm_a)
+		vty_out(vty, " alloc-algorithm a%s", VTY_NEWLINE);
+	if (bts->alloc_algorithm == alloc_algorithm_b)
+		vty_out(vty, " alloc-algorithm b%s", VTY_NEWLINE);
+
 }
 
 /* per-BTS configuration */
@@ -167,6 +172,27 @@ DEFUN(cfg_pcu_no_queue_lifetime,
 	return CMD_SUCCESS;
 }
 
+DEFUN(cfg_pcu_alloc,
+      cfg_pcu_alloc_cmd,
+      "alloc-algorithm (a|b)",
+      "Select slot allocation algorithm to use when assigning timeslots on "
+      "PACCH\nSingle slot is assigned only\nMultiple slots are assigned for "
+      "semi-duplex operation")
+{
+	struct gprs_rlcmac_bts *bts = gprs_rlcmac_bts;
+
+	switch (argv[0][0]) {
+	case 'a':
+		bts->alloc_algorithm = alloc_algorithm_a;
+		break;
+	case 'b':
+		bts->alloc_algorithm = alloc_algorithm_b;
+		break;
+	}
+
+	return CMD_SUCCESS;
+}
+
 static const char pcu_copyright[] =
 	"Copyright (C) 2012 by ...\r\n"
 	"License GNU GPL version 2 or later\r\n"
@@ -195,6 +221,7 @@ int pcu_vty_init(const struct log_info *cat)
 	install_element(PCU_NODE, &cfg_pcu_queue_lifetime_cmd);
 	install_element(PCU_NODE, &cfg_pcu_queue_lifetime_inf_cmd);
 	install_element(PCU_NODE, &cfg_pcu_no_queue_lifetime_cmd);
+	install_element(PCU_NODE, &cfg_pcu_alloc_cmd);
 	install_element(PCU_NODE, &ournode_end_cmd);
 
 	return 0;