000 00274nam a2200097Ia 4500
008 230508s1999 xx 000 0 und d
041 _aeng
100 _aTHIAGARAJAN VISHWATHAN
245 _aTELECOMMUNICATION SWITCHING SYSTEMS & NETWORK
260 _bPRENTICE HALL OF IND
_c1999
999 _c335815
_d335815