00245nam a2200085Ia 4500008004100000041000800041100002900049245005000078260003100128230508s2004    xx            000 0 und d  aeng  aTHIAGARAJAN VISHWANATHAN  aTELECOMMUNICATION SWITCHING SYSTEMS & NETWORK  bPRENTICE HALL OF INDc2004