workaround for silly https://code.google.com/p/chromium/issues/detail?id=177099

diff --git a/src/switch_core_media.c b/src/switch_core_media.c
index a69628d7ab0186c4786648e8c7bead152b37e2a5..cc5e23be08d342088bab887b4328b5e9c9c3901d 100644 (file)
--- a/src/switch_core_media.c
+++ b/src/switch_core_media.c
@@ -4540,7 +4540,13 @@ static void generate_m(switch_core_session_t *session, char *buf, size_t buflen,
 
        if ((smh->mparams->dtmf_type == DTMF_2833 || switch_media_handle_test_media_flag(smh, SCMF_LIBERAL_DTMF) || 
                 switch_channel_test_flag(session->channel, CF_LIBERAL_DTMF)) && smh->mparams->te > 95) {
-               switch_snprintf(buf + strlen(buf), buflen - strlen(buf), "a=rtpmap:%d telephone-event/8000\na=fmtp:%d 0-16\n", smh->mparams->te, smh->mparams->te);
+
+               if (switch_channel_test_flag(session->channel, CF_WEBRTC)) {
+                       switch_snprintf(buf + strlen(buf), buflen - strlen(buf), "a=rtpmap:%d telephone-event/8000\n", smh->mparams->te);
+               } else {
+                       switch_snprintf(buf + strlen(buf), buflen - strlen(buf), "a=rtpmap:%d telephone-event/8000\na=fmtp:%d 0-16\n", smh->mparams->te, smh->mparams->te);
+               }
+
        }
 
        if (!zstr(a_engine->local_dtls_fingerprint.type)) {
@@ -5014,7 +5020,11 @@ SWITCH_DECLARE(void) switch_core_media_gen_local_sdp(switch_core_session_t *sess
                if ((smh->mparams->dtmf_type == DTMF_2833 || switch_media_handle_test_media_flag(smh, SCMF_LIBERAL_DTMF) || 
                         switch_channel_test_flag(session->channel, CF_LIBERAL_DTMF))
                        && smh->mparams->te > 95) {
-                       switch_snprintf(buf + strlen(buf), SDPBUFLEN - strlen(buf), "a=rtpmap:%d telephone-event/8000\na=fmtp:%d 0-16\n", smh->mparams->te, smh->mparams->te);
+                       if (switch_channel_test_flag(session->channel, CF_WEBRTC)) {
+                               switch_snprintf(buf + strlen(buf), SDPBUFLEN - strlen(buf), "a=rtpmap:%d telephone-event/8000\n", smh->mparams->te);
+                       } else {
+                               switch_snprintf(buf + strlen(buf), SDPBUFLEN - strlen(buf), "a=rtpmap:%d telephone-event/8000\na=fmtp:%d 0-16\n", smh->mparams->te, smh->mparams->te);
+                       }
                }
                if (!switch_media_handle_test_media_flag(smh, SCMF_SUPPRESS_CNG) && smh->mparams->cng_pt && use_cng) {
                        switch_snprintf(buf + strlen(buf), SDPBUFLEN - strlen(buf), "a=rtpmap:%d CN/8000\n", smh->mparams->cng_pt);