diff --git a/trunk/src/app/srs_app_rtc_api.cpp b/trunk/src/app/srs_app_rtc_api.cpp
index 6c8ec8692..e3923d4e9 100644
--- a/trunk/src/app/srs_app_rtc_api.cpp
+++ b/trunk/src/app/srs_app_rtc_api.cpp
@@ -200,8 +200,6 @@ srs_error_t SrsGoApiRtcPlay::do_serve_http(ISrsHttpResponseWriter* w, ISrsHttpMe
 
     string local_sdp_str = os.str();
 
-    srs_verbose("local_sdp=%s", local_sdp_str.c_str());
-
     res->set("code", SrsJsonAny::integer(ERROR_SUCCESS));
     res->set("server", SrsJsonAny::integer(SrsStatistic::instance()->server_id()));
 
@@ -212,6 +210,8 @@ srs_error_t SrsGoApiRtcPlay::do_serve_http(ISrsHttpResponseWriter* w, ISrsHttpMe
 
     srs_trace("RTC username=%s, offer=%dB, answer=%dB", session->username().c_str(),
         remote_sdp_str.length(), local_sdp_str.length());
+    srs_trace("RTC offer: %s", srs_string_replace(remote_sdp_str.c_str(), "\r\n", "\\r\\n").c_str());
+    srs_trace("RTC answer: %s", srs_string_replace(local_sdp_str.c_str(), "\r\n", "\\r\\n").c_str());
 
     return err;
 }
@@ -553,8 +553,6 @@ srs_error_t SrsGoApiRtcPublish::do_serve_http(ISrsHttpResponseWriter* w, ISrsHtt
 
     string local_sdp_str = os.str();
 
-    srs_verbose("local_sdp=%s", local_sdp_str.c_str());
-
     res->set("code", SrsJsonAny::integer(ERROR_SUCCESS));
     res->set("server", SrsJsonAny::integer(SrsStatistic::instance()->server_id()));
 
@@ -565,6 +563,8 @@ srs_error_t SrsGoApiRtcPublish::do_serve_http(ISrsHttpResponseWriter* w, ISrsHtt
 
     srs_trace("RTC username=%s, offer=%dB, answer=%dB", session->username().c_str(),
         remote_sdp_str.length(), local_sdp_str.length());
+    srs_trace("RTC offer: %s", srs_string_replace(remote_sdp_str.c_str(), "\r\n", "\\r\\n").c_str());
+    srs_trace("RTC answer: %s", srs_string_replace(local_sdp_str.c_str(), "\r\n", "\\r\\n").c_str());
 
     return err;
 }