diff --git a/trunk/conf/push.gb28181.conf b/trunk/conf/push.gb28181.conf
index b76887d98..cb2f848b2 100644
--- a/trunk/conf/push.gb28181.conf
+++ b/trunk/conf/push.gb28181.conf
@@ -3,7 +3,8 @@
 listen                  1935;
 max_connections         1000;
 daemon                  off;
-pid                     ./objs/srs28181.pid
+pid                     ./objs/srs28181.pid;
+srs_log_file            ./objs/srs28181.log;
 srs_log_tank            console;
 stream_caster {
     enabled             on;
@@ -23,7 +24,7 @@ stream_caster {
 
     #服务器端编号
     #设备端配置编号需要与该值一致，否则无法注册
-    serial              34020000002020000001;
+    serial              34020000002000000001;
 
     #服务器端域
     realm               3402000000;
diff --git a/trunk/src/app/srs_app_gb28181.cpp b/trunk/src/app/srs_app_gb28181.cpp
index b4d647ce1..46f7950ff 100644
--- a/trunk/src/app/srs_app_gb28181.cpp
+++ b/trunk/src/app/srs_app_gb28181.cpp
@@ -571,8 +571,7 @@ srs_error_t SrsGb28181Conn::do_cycle()
         pprint->elapse();
 
         if ((err = trd->pull()) != srs_success) {
-            //srs_trace("pull faild %s"));
-            //return srs_error_wrap(err, "sip cycle");
+            return srs_error_wrap(err, "gb28181conn cycle");
         }
 
         srs_utime_t now = srs_get_system_time();
@@ -616,8 +615,11 @@ srs_error_t SrsGb28181Conn::do_cycle()
         }
        
        if (pprint->can_print()) {
-            srs_trace("gb28181: client id=%s, status, druation reg=%u alive=%u invite=%u",
+            srs_trace("gb28181: client id=%s, druation reg=%u alive=%u invite=%u",
             session_id.c_str(), reg_duration, alive_duration, invite_duration);
+
+            srs_trace("gb28181: client id=%s, status reg_status=%u alive_status=%u invite_status=%u",
+            session_id.c_str(), register_status, alive_status, invite_status);
        }
      
         srs_usleep(1000 * 1000);
@@ -1188,12 +1190,11 @@ srs_error_t SrsGb28181Caster::on_udp_bytes(string peer_ip, int peer_port,
         }
         srs_assert(conn != NULL);
         
-        if (conn->register_status == Srs28181Unkonw)
-        {
-            conn->serve();
-        }else{
-            srs_trace("gb28181: %s client is register", req->sip_auth_id.c_str());
-        }
+        // if (conn->register_status == Srs28181Unkonw)
+        // {
+        // }else{
+        //     srs_trace("gb28181: %s client is register", req->sip_auth_id.c_str());
+        // }
 
         send_status(req, from, fromlen);
         conn->register_status = Srs28181RegisterOk;
@@ -1204,13 +1205,13 @@ srs_error_t SrsGb28181Caster::on_udp_bytes(string peer_ip, int peer_port,
     }else if (req->is_message()) {
         SrsGb28181Conn* conn = fetch(req);
         if (!conn){
-            srs_trace("gb28181: %s client not found", req->sip_auth_id.c_str());
+            srs_trace("gb28181: %s client not registered", req->sip_auth_id.c_str());
             return srs_success;
         }
         
         if (conn->register_status == Srs28181Unkonw) {
             send_bye(req, from, fromlen);
-            srs_trace("gb28181: %s client not register", req->sip_auth_id.c_str());
+            srs_trace("gb28181: %s client not registered", req->sip_auth_id.c_str());
             return srs_success;
         }
          
@@ -1247,14 +1248,14 @@ srs_error_t SrsGb28181Caster::on_udp_bytes(string peer_ip, int peer_port,
        
         if (!conn){
             send_bye(req, from, fromlen);
-            srs_trace("gb28181: %s client not found", req->sip_auth_id.c_str());
+            srs_trace("gb28181: %s client not registered", req->sip_auth_id.c_str());
             return srs_success;
         }
 
         if (conn->register_status == Srs28181Unkonw ||
             conn->alive_status == Srs28181Unkonw) {
             send_bye(req, from, fromlen);
-            srs_trace("gb28181: %s client not register or alive", req->sip_auth_id.c_str());
+            srs_trace("gb28181: %s client not registered or not alive", req->sip_auth_id.c_str());
             return srs_success;
         }
         
@@ -1274,7 +1275,7 @@ srs_error_t SrsGb28181Caster::on_udp_bytes(string peer_ip, int peer_port,
         send_status(req, from, fromlen);
 
         if (!conn){
-            srs_trace("gb28181: %s client not found", req->sip_auth_id.c_str());
+            srs_trace("gb28181: %s client not registered", req->sip_auth_id.c_str());
             return srs_success;
         }
        
diff --git a/trunk/src/protocol/srs_sip_stack.cpp b/trunk/src/protocol/srs_sip_stack.cpp
index aed80de1e..e3031fd20 100644
--- a/trunk/src/protocol/srs_sip_stack.cpp
+++ b/trunk/src/protocol/srs_sip_stack.cpp
@@ -297,10 +297,10 @@ srs_error_t SrsSipStack::do_parse_request(SrsSipRequest* req, const char* recv_m
                             srs_trace("sip: message head %s content=%s", phead, content.c_str());
                         } 
                         else if (!strcasecmp(phead, "content-length:")) {
-                            srs_trace("sip: message head %s content=%s", phead, content.c_str());
+                            req->content_length = strtoul(content.c_str(), NULL, 10);
                         } 
                         else if (!strcasecmp(phead, "content-type:")) {
-                            srs_trace("sip: message head %s content=%s", phead, content.c_str());
+                            req->content_type = content;
                         } 
                         else if (!strcasecmp(phead, "cseq:")) {
                             std::vector<std::string> vec_seq = srs_string_split(content, " ");
@@ -331,6 +331,9 @@ srs_error_t SrsSipStack::do_parse_request(SrsSipRequest* req, const char* recv_m
                         else if (!strcasecmp(phead, "user-agent:")){
                             req->user_agent = content;
                         } 
+                        else if (!strcasecmp(phead, "max-forwards:")){
+                            req->max_forwards = strtoul(content.c_str(), NULL, 10);
+                        } 
                         else {
                             srs_trace("sip: unkonw message head %s content=%s", phead, content.c_str());
                         }