I don't really understand what you are saying either. The part about domestic he posted refers to the Whitlow ruling with the FAA. If you are flying domestic you must always be able to look back in any 24 hour period and see 8 hours rest. Being on call on reserve is not rest. If the company places you on short call you must block in 16 hours later or you have committed a FAR infraction. No such rule applies to international. His point was if the company puts you on a 24 hours short call you are no longer legal for a domestic leg after 16 hours. The company cuts it off at 12 to avoid issues. Has nothing at all to do with international trip assignments. They can give you anything they want at any time during the 24 hours you are on call.