CONTENTS : - NCF/NEC 1975 CONFERENCE MANAGEMENT - NEW TECHNOLOGY SEMINARS - 1 SPEECH PROCESSING I - PCM METHODS - 2 RECOVERY AND ROLLBACK STRATEGIES - 3 OPTICAL COMMUNICATION SYSTEMS - 4 COMPUTER NETWORKS - 5 COMPUTER PERFORMANCE EVALUATION - 6 MANAGEMENT OF LARGE DEVELOPMENT PROJECTS - 7 SPEECH PROCESSING II - ALTERNATIVES TO PCM - 8 SYNCHRONIZATION IN LARGE TIME-DIVISION NETWORKS - 9 MANAGEMENT OF SOFTWARE DEVELOPMENT - 10 NEW TECHNOLOGIES IN THE LOCAL TELEPHONE PLANT - 11 SWITCHING MAINTENANCE - EXECUTIVE LECTURE SERIES - 1 THE SELECTION AND TRAINING OF ENGINEERING MANAGERS - 2 BEHAVIOR MODIFICATION IN BUSINESS AND INDUSTRY - LARGE PANEL PROGRAM - 1 FUTURE OF DIGITAL ELECTRONIC SWITCHING - 2 IMPROVING PROGRAMMING PRODUCTIVITY - TECHNICAL PAPER SESSIONS - SESSION 1 NEW DEVICE DEVELOPMENTS - SESSION 2 INTELLIGENT TERMINALS FOR COMMUNICATION SYSTEMS - SESSION 3 PBX SYSTEMS - SESSION 4 COMMUNICATIONS THEORY - SESSION 5 TELEPHONY POWER SYSTEMS - SESSION 6 BIOMEDICAL INSTRUMENTATION EDUCATION - SESSION 7 (SMALL PANEL)LSI IN COMMUNICATIONS SYSTEM DESIGN - SESSION 8 CONTROL AND DISPLAY IN MODERN COMMUNICATIONS SYSTEMS - SESSION 9 DATA COMMUNICATION SYSTEMS - SESSION 10 (SMALL PANEL) MAINTENANCE OF EXISTING SOFTWARE - SESSION 11 MULTIPLEXING OF DIGITAL SIGNALS - SESSION 12 BIOLOGICAL EFFECTS AND HAZARDS FROM ELECTROMAGNETIC RADIATION - SESSION 13 MASS STORAGE SYSTEMS - SESSION 14 APPLICATIONS OF MICROPROCESSORS - SESSION 15 INTERNATIONAL COMMUNICATIONS NETWORKS - SESSION 16 RADIO - TELEVISION - SESSION 17 COMMUNICATIONS TECHNOLOGY - SESSION 18 MAN-MACHINE INTERACTIONS IN COMMUNICATIONS SYSTEMS - CONTRIBUTIONS NOT PREVIOUSLY LISTED - (Session 1) HIGH-DENSITY HERMETICALLY SEALED COS/MOS LSI ARRAYS- (Session 9) ACCESS TO PACKET SWITCH NETWORKS - (Session 14) MAINTENANCE AND PROTECTION OF THE M13 DIGITAL MULTIPLEX - INDEX OF CONTRIBUTORS