diff --git a/Constants.cs b/Constants.cs
index 9aab7e4..57bdffa 100644
--- a/Constants.cs
+++ b/Constants.cs
@@ -140,6 +140,8 @@ namespace fnecore
         public const ushort RtpFNEHeaderExtLength = 4; // length of FNE header in 32-bit units
         public const uint RtpGenericClockRate = 8000;
 
+        public const ushort RtpCallEndSeq = 65535;
+
         public const byte DVMRtpPayloadType = 0x56;
         public const byte DVMFrameStart = 0xFE;
 
diff --git a/FnePeer.cs b/FnePeer.cs
index 24fa437..9863230 100644
--- a/FnePeer.cs
+++ b/FnePeer.cs
@@ -271,7 +271,7 @@ namespace fnecore
 
             ushort curr = currPktSeq;
             ++currPktSeq;
-            if (currPktSeq > ushort.MaxValue)
+            if (currPktSeq > (Constants.RtpCallEndSeq - 1))
                 currPktSeq = 0;
 
             return curr;