diff --git a/Makefile.defs b/Makefile.defs
index dcc0ce1d..cc9defe3 100644
--- a/Makefile.defs
+++ b/Makefile.defs
@@ -68,6 +68,13 @@ exclude_core_modules = sipctrl
 #
 USE_MONITORING=yes
 
+# Support for long debug messages? (useful for debugging SIP messages' contents)
+#
+LONG_DEBUG_MESSAGE=yes
+
+
+################### end of configuration section #######################
+
 LDFLAGS += -lm
 
 GETOS=$(COREPATH)/compat/getos
@@ -99,9 +106,16 @@ endif
 endif
 
 ifdef USE_MONITORING
-CPPFLAGS += -DUSE_MONITORING      
+CPPFLAGS += -DUSE_MONITORING
 endif
 
+ifdef LONG_DEBUG_MESSAGE
+CPPFLAGS += -DLOG_BUFFER_LEN=2048
+else
+CPPFLAGS += -DLOG_BUFFER_LEN=512
+endif
+
+
 # Additions for Solaris support.
 ifeq ($(OS),solaris)
 	CPPFLAGS += -DHAVE_SYS_SOCKIO_H -DBSD_COMP -fPIC -include compat/solaris.h
diff --git a/core/log.h b/core/log.h
index 4a24407f..1356581b 100644
--- a/core/log.h
+++ b/core/log.h
@@ -104,7 +104,7 @@ enum Log_Level {
     if ((level_) <= log_level) {					\
       pid_t pid_ = GET_PID();						\
       pthread_t tid_ = GET_TID();					\
-      char msg_[512];							\
+      char msg_[LOG_BUFFER_LEN];					\
       int n_ = snprintf(msg_, sizeof(msg_), fmt, ##args);		\
       if (msg_[n_ - 1] == '\n') msg_[n_ - 1] = '\0';			\
 									\
diff --git a/core/sip/trans_layer.cpp b/core/sip/trans_layer.cpp
index bdce0e2c..ba0550e6 100644
--- a/core/sip/trans_layer.cpp
+++ b/core/sip/trans_layer.cpp
@@ -818,10 +818,10 @@ int trans_layer::send_request(sip_msg* msg, trans_ticket* tt)
 
     memcpy(&p_msg->remote_ip,&msg->remote_ip,sizeof(sockaddr_storage));
 
-    DBG("Sending to %s:%i <%.*s>\n",
+    DBG("Sending to %s:%i <%.*s...>\n",
 	get_addr_str(((sockaddr_in*)&p_msg->remote_ip)->sin_addr).c_str(),
 	ntohs(((sockaddr_in*)&p_msg->remote_ip)->sin_port),
-	p_msg->len,p_msg->buf);
+	50 /* preview - instead of p_msg->len */,p_msg->buf);
 
     tt->_bucket = get_trans_bucket(p_msg->callid->value,
 					    get_cseq(p_msg)->num_str);