diff --git a/src/sipsess/connect.c b/src/sipsess/connect.c
index 1f56218ce..7a67d1e13 100644
--- a/src/sipsess/connect.c
+++ b/src/sipsess/connect.c
@@ -93,6 +93,9 @@ static void invite_resp_handler(int err, const struct sip_msg *msg, void *arg)
 		sess->progrh(msg, sess->arg);
 		sdp = mbuf_get_left(msg->mb) > 0;
 
+		if (msg->scode == 100)
+			return;
+
 		if (sdp && sess->sent_offer) {
 			sess->awaiting_answer = false;
 			err = sess->answerh(msg, sess->arg);