diff --git a/README.md b/README.md
index e3cfefdf6..164f74075 100755
--- a/README.md
+++ b/README.md
@@ -182,6 +182,7 @@ The ports used by SRS:
 
 ## V4 changes
 
+* v4.0, 2021-05-18, Fix [#2355][bug #2355]: GB28181: Fix play by RTC bug. 4.0.116
 * v4.0, 2021-05-15, SRT: Build SRT from source by SRS. 4.0.115
 * v4.0, 2021-05-15, Rename SrsConsumer* to SrsLiveConsumer*. 4.0.114
 * v4.0, 2021-05-15, Rename SrsRtcStream* to SrsRtcSource*. 4.0.113
@@ -1929,6 +1930,7 @@ Winlin
 [bug #2188]: https://github.com/ossrs/srs/issues/2188
 [bug #1193]: https://github.com/ossrs/srs/issues/1193
 [bug #2304]: https://github.com/ossrs/srs/issues/2304#issuecomment-826009290
+[bug #2355]: https://github.com/ossrs/srs/issues/2355
 [bug #yyyyyyyyyyyyy]: https://github.com/ossrs/srs/issues/yyyyyyyyyyyyy
 
 [bug #1631]: https://github.com/ossrs/srs/issues/1631
diff --git a/trunk/configure b/trunk/configure
index 37a9398bd..bf05bf4ff 100755
--- a/trunk/configure
+++ b/trunk/configure
@@ -283,13 +283,10 @@ if [[ $SRS_FFMPEG_FIT == YES ]]; then
     MODULE_FILES+=("srs_app_rtc_codec")
 fi
 if [[ $SRS_GB28181 == YES ]]; then
-    MODULE_FILES+=("srs_app_gb28181" "srs_app_gb28181_sip")
-fi
-if [[ $SRS_GB28181 == YES || $SRS_RTC == YES ]]; then
-    MODULE_FILES+=("srs_app_rtc_jitbuffer")
+    MODULE_FILES+=("srs_app_gb28181" "srs_app_gb28181_sip" "srs_app_gb28181_jitter")
 fi
 if [[ $SRS_GB28181 == YES ]]; then
-    MODULE_FILES+=("srs_app_sip")
+    MODULE_FILES+=("srs_app_gb28181_stack")
     ModuleLibIncs+=(${LibIconvRoot})
 fi
 
diff --git a/trunk/src/app/srs_app_config.cpp b/trunk/src/app/srs_app_config.cpp
index d0b257163..af2f9fad7 100644
--- a/trunk/src/app/srs_app_config.cpp
+++ b/trunk/src/app/srs_app_config.cpp
@@ -326,6 +326,23 @@ srs_error_t srs_config_transform_vhost(SrsConfDirective* root)
             dir->name = "http_server";
             continue;
         }
+
+        // SRS4.0, removed the support of configs:
+        //      rtc_server { perf_stat; queue_length; }
+        if (dir->name == "rtc_server") {
+            std::vector<SrsConfDirective*>::iterator it;
+            for (it = dir->directives.begin(); it != dir->directives.end();) {
+                SrsConfDirective* conf = *it;
+
+                if (conf->name == "perf_stat" || conf->name == "queue_length") {
+                    dir->directives.erase(it);
+                    srs_freep(conf);
+                    continue;
+                }
+
+                ++it;
+            }
+        }
         
         if (!dir->is_vhost()) {
             continue;
diff --git a/trunk/src/app/srs_app_gb28181.cpp b/trunk/src/app/srs_app_gb28181.cpp
index d99ef0544..3fd610428 100644
--- a/trunk/src/app/srs_app_gb28181.cpp
+++ b/trunk/src/app/srs_app_gb28181.cpp
@@ -50,7 +50,8 @@ using namespace std;
 #include <srs_app_rtmp_conn.hpp>
 #include <srs_protocol_utility.hpp>
 #include <srs_protocol_format.hpp>
-#include <srs_app_sip.hpp>
+#include <srs_app_gb28181_stack.hpp>
+#include <srs_app_rtc_source.hpp>
 
 //#define W_PS_FILE
 //#define W_VIDEO_FILE
@@ -1436,10 +1437,38 @@ srs_error_t SrsGb28181RtmpMuxer::initialize(SrsServer *s, SrsRequest* r)
         return srs_error_wrap(err, "create source");
     }
 
-    //TODO: ???
-    // if (!source->can_publish(false)) {
-    //     return srs_error_new(ERROR_GB28181_SESSION_IS_EXIST, "stream %s busy", req->get_stream_url().c_str());
-    // }
+ #ifdef SRS_RTC
+    SrsRtcSource *rtc = NULL;
+    bool rtc_server_enabled = _srs_config->get_rtc_server_enabled();
+    bool rtc_enabled = _srs_config->get_rtc_enabled(req->vhost);
+    if (rtc_server_enabled && rtc_enabled) {
+        if ((err = _srs_rtc_sources->fetch_or_create(req, &rtc)) != srs_success) {
+            return srs_error_wrap(err, "create source");
+        }
+
+        if (!rtc->can_publish()) {
+            return srs_error_new(ERROR_RTC_SOURCE_BUSY, "gb28181 rtc stream %s busy", req->get_stream_url().c_str());
+        }
+    }
+#endif
+
+    // Check whether RTMP stream is busy.
+    if (!source->can_publish(false)) {
+        return srs_error_new(ERROR_SYSTEM_STREAM_BUSY, "gb28181 rtmp: stream %s is busy", req->get_stream_url().c_str());
+    }
+
+    // Bridge to RTC streaming.
+#if defined(SRS_RTC) && defined(SRS_FFMPEG_FIT)
+    if (rtc) {
+        SrsRtcFromRtmpBridger *bridger = new SrsRtcFromRtmpBridger(rtc);
+        if ((err = bridger->initialize(req)) != srs_success) {
+            srs_freep(bridger);
+            return srs_error_wrap(err, "bridger init");
+        }
+
+        source->set_bridger(bridger);
+    }
+#endif
 
     if ((err = source->on_publish()) != srs_success) {
         return srs_error_wrap(err, "on publish");
diff --git a/trunk/src/app/srs_app_gb28181.hpp b/trunk/src/app/srs_app_gb28181.hpp
index 268fb895b..07bd0cfa2 100644
--- a/trunk/src/app/srs_app_gb28181.hpp
+++ b/trunk/src/app/srs_app_gb28181.hpp
@@ -39,7 +39,7 @@
 #include <srs_kernel_file.hpp>
 #include <srs_protocol_json.hpp>
 #include <srs_app_gb28181_sip.hpp>
-#include <srs_app_rtc_jitbuffer.hpp>
+#include <srs_app_gb28181_jitter.hpp>
 #include <srs_rtmp_stack.hpp>
 #include <srs_app_source.hpp>
 #include <srs_service_conn.hpp>
diff --git a/trunk/src/app/srs_app_rtc_jitbuffer.cpp b/trunk/src/app/srs_app_gb28181_jitter.cpp
similarity index 99%
rename from trunk/src/app/srs_app_rtc_jitbuffer.cpp
rename to trunk/src/app/srs_app_gb28181_jitter.cpp
index 40a1b6fbd..852060e17 100644
--- a/trunk/src/app/srs_app_rtc_jitbuffer.cpp
+++ b/trunk/src/app/srs_app_gb28181_jitter.cpp
@@ -21,7 +21,7 @@
  * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  */
 
-#include <srs_app_rtc_jitbuffer.hpp>
+#include <srs_app_gb28181_jitter.hpp>
 
 #include <srs_kernel_utility.hpp>
 #include <srs_kernel_error.hpp>
@@ -1201,7 +1201,7 @@ SrsRtpFrameBufferEnum SrsRtpJitterBuffer::InsertPacket(uint16_t seq, uint32_t ts
         //CountFrame(*frame);
         // if (previous_state != kStateDecodable &&
         //         previous_state != kStateComplete) {
-        //     /*CountFrame(*frame);*/ //????????????????????�?? by ylr
+        //     /*CountFrame(*frame);
         //     if (continuous) {
         //         // Signal that we have a complete session.
         //         frame_event_->Set();
@@ -1213,7 +1213,7 @@ SrsRtpFrameBufferEnum SrsRtpJitterBuffer::InsertPacket(uint16_t seq, uint32_t ts
     case kDecodableSession: {
         // *retransmitted = (frame->GetNackCount() > 0);
 
-        if (true || continuous) {
+        if (continuous) {
             decodable_frames_.InsertFrame(frame);
             FindAndInsertContinuousFrames(*frame);
         } else {
@@ -1522,7 +1522,9 @@ bool SrsRtpJitterBuffer::NextMaybeIncompleteTimestamp(uint32_t* timestamp)
     SrsRtpFrameBuffer* oldest_frame;
 
     if (decodable_frames_.empty()) {
-        if (incomplete_frames_.size() <= 1) {
+        //in order to solve the problem of bad network, we can wait for more incomplete frames
+        //ex fps=15
+        if (incomplete_frames_.size() < 15) {
             return false;
         }
 
diff --git a/trunk/src/app/srs_app_rtc_jitbuffer.hpp b/trunk/src/app/srs_app_gb28181_jitter.hpp
similarity index 99%
rename from trunk/src/app/srs_app_rtc_jitbuffer.hpp
rename to trunk/src/app/srs_app_gb28181_jitter.hpp
index eef613c08..021b17cd4 100644
--- a/trunk/src/app/srs_app_rtc_jitbuffer.hpp
+++ b/trunk/src/app/srs_app_gb28181_jitter.hpp
@@ -21,8 +21,8 @@
  * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  */
 
-#ifndef SRS_APP_RTC_RTP_JITBUFFER_HPP
-#define SRS_APP_RTC_RTP_JITBUFFER_HPP
+#ifndef SRS_APP_GB28181_RTP_JITBUFFER_HPP
+#define SRS_APP_GB28181_RTP_JITBUFFER_HPP
 
 #include <srs_core.hpp>
 
diff --git a/trunk/src/app/srs_app_gb28181_sip.cpp b/trunk/src/app/srs_app_gb28181_sip.cpp
index 1ca695c6d..1f82f8510 100644
--- a/trunk/src/app/srs_app_gb28181_sip.cpp
+++ b/trunk/src/app/srs_app_gb28181_sip.cpp
@@ -43,7 +43,7 @@ using namespace std;
 #include <srs_kernel_utility.hpp>
 #include <srs_kernel_codec.hpp>
 #include <srs_app_pithy_print.hpp>
-#include <srs_app_sip.hpp>
+#include <srs_app_gb28181_stack.hpp>
 #include <srs_app_gb28181.hpp>
 
 
diff --git a/trunk/src/app/srs_app_gb28181_sip.hpp b/trunk/src/app/srs_app_gb28181_sip.hpp
index 23dd99c33..477610d7a 100644
--- a/trunk/src/app/srs_app_gb28181_sip.hpp
+++ b/trunk/src/app/srs_app_gb28181_sip.hpp
@@ -31,7 +31,7 @@
 #include <map>
 
 #include <srs_app_log.hpp>
-#include <srs_app_sip.hpp>
+#include <srs_app_gb28181_stack.hpp>
 #include <srs_app_gb28181.hpp>
 #include <srs_app_pithy_print.hpp>
 #include <srs_service_conn.hpp>
diff --git a/trunk/src/app/srs_app_sip.cpp b/trunk/src/app/srs_app_gb28181_stack.cpp
similarity index 99%
rename from trunk/src/app/srs_app_sip.cpp
rename to trunk/src/app/srs_app_gb28181_stack.cpp
index c7ff221f0..198a270c6 100644
--- a/trunk/src/app/srs_app_sip.cpp
+++ b/trunk/src/app/srs_app_gb28181_stack.cpp
@@ -21,7 +21,7 @@
  * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  */
 
-#include <srs_app_sip.hpp>
+#include <srs_app_gb28181_stack.hpp>
 
 #if !defined(SRS_EXPORT_LIBRTMP)
 
diff --git a/trunk/src/app/srs_app_sip.hpp b/trunk/src/app/srs_app_gb28181_stack.hpp
similarity index 98%
rename from trunk/src/app/srs_app_sip.hpp
rename to trunk/src/app/srs_app_gb28181_stack.hpp
index eea753797..67651e740 100644
--- a/trunk/src/app/srs_app_sip.hpp
+++ b/trunk/src/app/srs_app_gb28181_stack.hpp
@@ -21,8 +21,8 @@
  * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  */
 
-#ifndef SRS_PROTOCOL_SIP_HPP
-#define SRS_PROTOCOL_SIP_HPP
+#ifndef SRS_APP_GB28181_STACK_HPP
+#define SRS_APP_GB28181_STACK_HPP
 
 #include <srs_core.hpp>
 
diff --git a/trunk/src/core/srs_core_version4.hpp b/trunk/src/core/srs_core_version4.hpp
index 8f301a368..31be6ba1a 100644
--- a/trunk/src/core/srs_core_version4.hpp
+++ b/trunk/src/core/srs_core_version4.hpp
@@ -26,6 +26,6 @@
 
 #define VERSION_MAJOR       4
 #define VERSION_MINOR       0
-#define VERSION_REVISION    115
+#define VERSION_REVISION    116
 
 #endif