anchor.diff:  %%
   %%            Length = integer()
   %%
  -%% @throws  {error, Type, invalid_content_length, Header} 
  +%% @throws  {error, Type, invalid_content_length, Header}
   %%
   %% @doc     Get Content-Length and return it as an integer value.
   %% @end
  
positive.code: %%
  %%            NewRecv = #recv{}
  %%
  %% @throws  {error, parse_failed, Reason::string()} 
  %%
  %% @doc     When we see the header-body separator, we let this
  %%          function call sippacket:parse() on the data we have this
  
negative.code: 		  alt_ip	= undefined,
  		  alt_port	= undefined
  		 },
      Test_StunRecv = #recv{stun_env   = Test_StunEnv,
  			  origin_str = "origin-string"
  			 },
  
      HRD_17_Data = <<16#0001:16/big-unsigned,	%% STUN binding request
  		   0:16/big-unsigned,		%% STUN length of attributes
  