diff --git a/src/engine/helper/HL_Sync.cpp b/src/engine/helper/HL_Sync.cpp
index 9e4671c5..a7ade995 100644
--- a/src/engine/helper/HL_Sync.cpp
+++ b/src/engine/helper/HL_Sync.cpp
@@ -120,6 +120,11 @@ timespec chronox::toTimespec(uint64_t milliseconds)
     return r;
 }
 
+uint64_t chronox::toTimestamp(const timeval& ts)
+{
+    return ts.tv_sec * 1000 + ts.tv_usec / 1000;
+}
+
 int64_t chronox::getDelta(const timespec& a, const timespec& b)
 {
     uint64_t ms_a = a.tv_sec * 1000 + a.tv_nsec / 10000000;
diff --git a/src/engine/helper/HL_Sync.h b/src/engine/helper/HL_Sync.h
index b30fc1ca..3fb85b71 100644
--- a/src/engine/helper/HL_Sync.h
+++ b/src/engine/helper/HL_Sync.h
@@ -61,6 +61,7 @@ public:
 
   // Converts number of milliseconds starting from Epoch begin to timespec.
   static timespec toTimespec(uint64_t milliseconds);
+  static uint64_t toTimestamp(const timeval& ts);
 
   // Returns difference between timestamps in milliseconds
   static int64_t getDelta(const timespec& a, const timespec& b);
diff --git a/src/libs/ice/ICESession.cpp b/src/libs/ice/ICESession.cpp
index c6be056a..7b6ca3d4 100644
--- a/src/libs/ice/ICESession.cpp
+++ b/src/libs/ice/ICESession.cpp
@@ -795,7 +795,7 @@ bool Session::isDataIndication(ByteBuffer& source, ByteBuffer* plain)
     return false;
 }
 
-bool Session::isStun(ByteBuffer& source)
+bool Session::isStun(const ByteBuffer& source)
 {
   if (source.size() < 8)
     return false;
diff --git a/src/libs/ice/ICESession.h b/src/libs/ice/ICESession.h
index c7cdebfa..cccaf5b8 100644
--- a/src/libs/ice/ICESession.h
+++ b/src/libs/ice/ICESession.h
@@ -140,7 +140,7 @@ namespace ice
     bool              hasAllocations();
         
     static bool       isDataIndication(ByteBuffer& source, ByteBuffer* plain);
-    static bool       isStun(ByteBuffer& source);
+    static bool       isStun(const ByteBuffer& source);
     static bool       isRtp(ByteBuffer& source);
     static bool       isChannelData(ByteBuffer& source, TurnPrefix prefix);