000 00493nam a2200181Ia 4500
001 27218
008 140414s9999 xx 000 0 und d
020 _a81-7808-285-3
040 _cPK-LaUMT
082 _a 621.38212
_bDOU-I
100 _aBill Douskalis
245 _aIP telephony [+CD]
_bthe integration of robust VoIP services
_cBill Douskalis
260 _aDelhi,India:
_bPearson Education,
_c2002
300 _a331 p.
_eCD
546 _aEN
650 _aInternet telephony
942 _cBK
999 _c27356
_d27356