1 files changed, 20 insertions, 0 deletions
diff --git a/src/ua.c b/src/ua.c
index 5bdb991..2f86d33 100644
--- a/src/ua.c
+++ b/src/ua.c
@@ -922,6 +922,26 @@ struct call *ua_call(const struct ua *ua)
 	return NULL;
 }
 
+struct call *ua_prev_call(const struct ua *ua)
+{
+	struct le *le;
+
+	if (!ua)
+		return NULL;
+
+	int prev = 0;
+	for (le = ua->calls.tail; le; le = le->prev) {
+		if( prev == 1){
+			struct call *call = le->data;
+			return call;
+		}
+		if( prev == 0)
+			prev = 1;
+	}
+
+	return NULL;
+}
+
 
 int ua_debug(struct re_printf *pf, const struct ua *ua)
 {