000 00368nam a2200121Ia 4500
008 220620s9999||||xx |||||||||||||| ||und||
245 0 _aVoIP Technologies
546 _aEnglish[eng]
650 _aComputer networking & communications
700 _aKashihara, Shigeru
856 _uhttps://mts.intechopen.com/storage/books/37/authors_book/authors_book.pdf
942 _cEB
999 _c29069
_d29069