--- a/abis/main.c	Tue Aug 13 21:44:30 2024 +0000
+++ b/abis/main.c	Tue Aug 13 22:07:49 2024 +0000
@@ -20,6 +20,7 @@
 #include <osmocom/core/application.h>
 #include <osmocom/e1d/proto_clnt.h>
 #include <osmocom/isdn/i460_mux.h>
+#include <osmocom/trau/trau_sync.h>
 
 #include "../libutil/open_ts.h"
 #include "../libutil/stdin_handler.h"
@@ -81,6 +82,18 @@
 	}
 }
 
+static void setup_rx_sync(void)
+{
+	int nr;
+
+	for (nr = 0; nr < ABIS_SUBSLOTS; nr++) {
+		subslots[nr].sync = osmo_trau_sync_alloc(g_ctx, "TRAU-UL-sync",
+					sync_rx_func, OSMO_TRAU_SYNCP_16_FR_EFR,
+					subslots + nr);
+		OSMO_ASSERT(subslots[nr].sync);
+	}
+}
+
 int main(int argc, char **argv)
 {
 	process_cmdline(argc, argv);
@@ -98,6 +111,7 @@
 
 	osmo_i460_ts_init(&i460_ts);
 	register_subslots();
+	setup_rx_sync();
 	init_canned_dl_frames();
 
 	osmo_fd_setup(&ts_ofd, ts_fd, OSMO_FD_READ, ts_fd_cb, NULL, 0);