00451nam a2200121Ia 450000500170000010000200001724500280003726000090006552002130007458300190028794200060030699900170031220260716043333.0  aKAMAE, Takahiko  aCommunication networks.  c1995  aDescribes the state of the art in ISDN - a fully digitized communication network that is expected gradually to take over the telephone network.  Looks at the future trends relevant to broadband ISDN (B-ISDN).  c3/7/00kM2LMGR  cA  c45140d45140