Index: main/rtp.c
===================================================================
--- main/rtp.c	(revision 129342)
+++ main/rtp.c	(working copy)
@@ -1062,10 +1062,6 @@
 	/* Check what the payload value should be */
 	rtpPT = ast_rtp_lookup_pt(rtp, payload);
 
-	/* If the payload coming in is not one of the negotiated ones then send it to the core, this will cause formats to change and the bridge to break */
-	if (!bridged->current_RTP_PT[payload].code)
-		return -1;
-
 	/* If the payload is DTMF, and we are listening for DTMF - then feed it into the core */
 	if (ast_test_flag(rtp, FLAG_P2P_NEED_DTMF) && !rtpPT.isAstFormat && rtpPT.code == AST_RTP_DTMF)
 		return -1;
@@ -1073,6 +1069,11 @@
 	/* Otherwise adjust bridged payload to match */
 	bridged_payload = ast_rtp_lookup_code(bridged, rtpPT.isAstFormat, rtpPT.code);
 
+	/* If the payload coming in is not one of the negotiated ones then send it to the core, this will cause formats to change and the bridge to break */
+	if (!bridged->current_RTP_PT[bridged_payload].code)
+		return -1;
+
+
 	/* If the mark bit has not been sent yet... do it now */
 	if (!ast_test_flag(rtp, FLAG_P2P_SENT_MARK)) {
 		mark = 1;