pdfs.oppedahl.com e{MTC service re estin SM . US 9,525,559 B2 Page 2 implemented, such that charging...
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pdfs.oppedahl.com e{MTC service re estin SM . US 9,525,559 B2 Page 2 implemented, such that charging is performed more accu- rately. 2011083065 Al 7/2011 (52) (58)