diff --git a/daemon/media_socket.c b/daemon/media_socket.c
index 09bb18c4b..8c49cd835 100644
--- a/daemon/media_socket.c
+++ b/daemon/media_socket.c
@@ -224,6 +224,10 @@ const int num_transport_protocols = G_N_ELEMENTS(transport_protocols);
 static const struct streamhandler_io __shio_noop = {
 	.kernel		= __k_null,
 };
+static const struct streamhandler_io __shio_noop_index = {
+	.kernel		= __k_null,
+	.rtp_crypt	= rtp_update_index,
+};
 static const struct streamhandler_io __shio_decrypt = {
 	.kernel		= __k_srtp_decrypt,
 	.rtp_crypt	= call_savp2avp_rtp,
@@ -259,6 +263,10 @@ static const struct streamhandler __sh_noop = {
 	.in		= &__shio_noop,
 	.out		= &__shio_noop,
 };
+static const struct streamhandler __sh_noop_index = {
+	.in		= &__shio_noop,
+	.out		= &__shio_noop_index,
+};
 static const struct streamhandler __sh_savp2avp = {
 	.in		= &__shio_decrypt,
 	.out		= &__shio_noop,
@@ -295,8 +303,8 @@ static const struct streamhandler __sh_savpf2savp = {
 /* ********** */
 
 static const struct streamhandler * const __sh_matrix_in_rtp_avp[__PROTO_LAST] = {
-	[PROTO_RTP_AVP]			= &__sh_noop,
-	[PROTO_RTP_AVPF]		= &__sh_noop,
+	[PROTO_RTP_AVP]			= &__sh_noop_index,
+	[PROTO_RTP_AVPF]		= &__sh_noop_index,
 	[PROTO_RTP_SAVP]		= &__sh_avp2savp,
 	[PROTO_RTP_SAVPF]		= &__sh_avp2savp,
 	[PROTO_UDP_TLS_RTP_SAVP]	= &__sh_avp2savp,
@@ -307,7 +315,7 @@ static const struct streamhandler * const __sh_matrix_in_rtp_avp[__PROTO_LAST] =
 };
 static const struct streamhandler * const __sh_matrix_in_rtp_avpf[__PROTO_LAST] = {
 	[PROTO_RTP_AVP]			= &__sh_avpf2avp,
-	[PROTO_RTP_AVPF]		= &__sh_noop,
+	[PROTO_RTP_AVPF]		= &__sh_noop_index,
 	[PROTO_RTP_SAVP]		= &__sh_avpf2savp,
 	[PROTO_RTP_SAVPF]		= &__sh_avp2savp,
 	[PROTO_UDP_TLS_RTP_SAVP]	= &__sh_avpf2savp,
diff --git a/daemon/rtp.c b/daemon/rtp.c
index 283f6db7d..29e59b27d 100644
--- a/daemon/rtp.c
+++ b/daemon/rtp.c
@@ -142,6 +142,18 @@ int rtp_avp2savp(str *s, struct crypto_context *c, struct ssrc_ctx *ssrc_ctx) {
 	return 0;
 }
 
+// just updates the ext_seq in ssrc
+int rtp_update_index(str *s, struct packet_stream *ps, struct ssrc_ctx *ssrc) {
+	struct rtp_header *rtp;
+
+	if (G_UNLIKELY(!ssrc))
+		return -1;
+	if (rtp_payload(&rtp, NULL, s))
+		return -1;
+	packet_index(ssrc, rtp);
+	return 0;
+}
+
 /* rfc 3711, section 3.3 */
 int rtp_savp2avp(str *s, struct crypto_context *c, struct ssrc_ctx *ssrc_ctx) {
 	struct rtp_header *rtp;
diff --git a/include/rtp.h b/include/rtp.h
index 241196462..04ffecc0f 100644
--- a/include/rtp.h
+++ b/include/rtp.h
@@ -18,6 +18,8 @@ const rtp_payload_type *get_rtp_payload_type(unsigned int, struct codec_store *)
 int rtp_avp2savp(str *, struct crypto_context *, struct ssrc_ctx *);
 int rtp_savp2avp(str *, struct crypto_context *, struct ssrc_ctx *);
 
+int rtp_update_index(str *, struct packet_stream *, struct ssrc_ctx *);
+
 void rtp_append_mki(str *s, struct crypto_context *c);
 int srtp_payloads(str *to_auth, str *to_decrypt, str *auth_tag, str *mki,
 		int auth_len, int mki_len,