anchor.diff:  
   -record(global_title, {
   	  gti :: 0..15,
  -	  nature_of_addr_ind :: 0..255,
  +	  nature_of_addr_ind :: 0..127,
   	  trans_type,
   	  encoding	:: 0..15,
   	  numbering_plan:: 0..15,
  
positive.code: -define(SCCP_SSN_BISDN,		2#000001101).
  -define(SCCP_SSN_TC_TEST,	2#000001110).
  
  % According to Q.713 Section 3.11 - Release Cause
  %FIXME
  
  
negative.code: 	  ssn,			% optional
  	  global_title		% optional
  	}).
  