diff --git a/channels/chan_pjsip.c b/channels/chan_pjsip.c
index ebda6c7ee174082fc22c5d7177f2bc7cfa4393c6..4a24fa689fc42b2b6481e5dc89513aedd4bb873d 100644
--- a/channels/chan_pjsip.c
+++ b/channels/chan_pjsip.c
@@ -797,14 +797,13 @@ static struct ast_frame *chan_pjsip_read_stream(struct ast_channel *ast)
 		return f;
 	}
 
-	if (ast_format_cap_iscompatible_format(ast_channel_nativeformats(ast), f->subclass.format) == AST_FORMAT_CMP_NOT_EQUAL) {
-		ast_debug(1, "Oooh, got a frame with format of %s on channel '%s' when it has not been negotiated\n",
-			ast_format_get_name(f->subclass.format), ast_channel_name(ast));
-
-		ast_frfree(f);
-		return &ast_null_frame;
-	}
+	session = channel->session;
 
+	/*
+	 * Asymmetric RTP only has one native format set at a time.
+	 * Therefore we need to update the native format to the current
+	 * raw read format BEFORE the native format check
+	 */
 	if (!session->endpoint->asymmetric_rtp_codec &&
 		ast_format_cmp(ast_channel_rawwriteformat(ast), f->subclass.format) == AST_FORMAT_CMP_NOT_EQUAL) {
 		struct ast_format_cap *caps;
@@ -831,6 +830,14 @@ static struct ast_frame *chan_pjsip_read_stream(struct ast_channel *ast)
 		}
 	}
 
+	if (ast_format_cap_iscompatible_format(ast_channel_nativeformats(ast), f->subclass.format) == AST_FORMAT_CMP_NOT_EQUAL) {
+		ast_debug(1, "Oooh, got a frame with format of %s on channel '%s' when it has not been negotiated\n",
+			ast_format_get_name(f->subclass.format), ast_channel_name(ast));
+
+		ast_frfree(f);
+		return &ast_null_frame;
+	}
+
 	if (session->dsp) {
 		int dsp_features;
 
diff --git a/include/asterisk/rtp_engine.h b/include/asterisk/rtp_engine.h
index d030bdb19215f7996d64ddc68685993e6fe9df16..3ceac8467e17ee409094736fd21a82fad6e330c1 100644
--- a/include/asterisk/rtp_engine.h
+++ b/include/asterisk/rtp_engine.h
@@ -120,6 +120,8 @@ enum ast_rtp_property {
 	AST_RTP_PROPERTY_STUN,
 	/*! Enable RTCP support */
 	AST_RTP_PROPERTY_RTCP,
+	/*! Enable Asymmetric RTP Codecs */
+	AST_RTP_PROPERTY_ASYMMETRIC_CODEC,
 
 	/*!
 	 * \brief Maximum number of RTP properties supported
diff --git a/res/res_pjsip_sdp_rtp.c b/res/res_pjsip_sdp_rtp.c
index 77cd807825f27bbbf35c5436a87b8a81905c8df6..b082b1d896382275e7f81dab973383d81ac1cdef 100644
--- a/res/res_pjsip_sdp_rtp.c
+++ b/res/res_pjsip_sdp_rtp.c
@@ -202,6 +202,7 @@ static int create_rtp(struct ast_sip_session *session, struct ast_sip_session_me
 	}
 
 	ast_rtp_instance_set_prop(session_media->rtp, AST_RTP_PROPERTY_NAT, session->endpoint->media.rtp.symmetric);
+	ast_rtp_instance_set_prop(session_media->rtp, AST_RTP_PROPERTY_ASYMMETRIC_CODEC, session->endpoint->asymmetric_rtp_codec);
 
 	if (!session->endpoint->media.rtp.ice_support && (ice = ast_rtp_instance_get_ice(session_media->rtp))) {
 		ice->stop(session_media->rtp);
diff --git a/res/res_rtp_asterisk.c b/res/res_rtp_asterisk.c
index 65ab9020fc07e62e3de74815e92a7f574e4e2331..0ff2b559d7a743eda60330fa43578b9caa641b18 100644
--- a/res/res_rtp_asterisk.c
+++ b/res/res_rtp_asterisk.c
@@ -313,6 +313,7 @@ struct ast_rtp {
 	void *data;
 	struct ast_rtcp *rtcp;
 	struct ast_rtp *bridged;        /*!< Who we are Packet bridged to */
+	unsigned int asymmetric_codec;  /*!< Indicate if asymmetric send/receive codecs are allowed */
 
 	struct ast_rtp_instance *bundled; /*!< The RTP instance we are bundled to */
 	int stream_num; /*!< Stream num for this RTP instance */
@@ -5113,6 +5114,23 @@ static int bridge_p2p_rtp_write(struct ast_rtp_instance *instance,
 		return -1;
 	}
 
+
+	ao2_replace(rtp->lastrxformat, payload_type->format);
+	ao2_replace(bridged->lasttxformat, payload_type->format);
+
+	/*
+	 * If bridged peer has already received rtp, perform the asymmetric codec check
+	 * if that feature has been activated
+	 */
+	if (!bridged->asymmetric_codec && bridged->lastrxformat != ast_format_none) {
+		if (ast_format_cmp(bridged->lasttxformat, bridged->lastrxformat) == AST_FORMAT_CMP_NOT_EQUAL) {
+			ast_debug(1, "Asymmetric RTP codecs detected (TX: %s, RX: %s) sending frame to core\n",
+					ast_format_get_name(bridged->lasttxformat),
+					ast_format_get_name(bridged->lastrxformat));
+			return -1;
+		}
+	}
+
 	/* If the marker bit has been explicitly set turn it on */
 	if (ast_test_flag(rtp, FLAG_NEED_MARKER_BIT)) {
 		mark = 1;
@@ -5797,6 +5815,8 @@ static void ast_rtp_prop_set(struct ast_rtp_instance *instance, enum ast_rtp_pro
 				rtp->rtcp = NULL;
 			}
 		}
+	} else if (property == AST_RTP_PROPERTY_ASYMMETRIC_CODEC) {
+		rtp->asymmetric_codec = value;
 	}
 }