F. P. Duffy

1969-70 Connection Survey: Analog Transmission Performance on the Switched Telecommunications Network

F. P. Duffy, T. W. Thatcher · Bell System Technical Journal · 1971 · 43 citations

1969-70 Connection Survey, Bell Telephone Laboratories, Engineering +12

A Study of Network Performance and Customer Behavior During Direct-Distance-Dialing Call Attempts in the U.S.A.

F. P. Duffy, R. A. Mercer · Bell System Technical Journal · 1978 · 21 citations

Customer Satisfaction, Admission Control, Engineering +13

Echo Performance of Toll Telephone Connections in the United States

F. P. Duffy, G. K. McNees, Ingemar Nåsell et al. · Bell System Technical Journal · 1975 · 14 citations

Engineering, Health Sciences, Voice +10

Speech Signal Power in the Switched Message Network

W. C. Ahern, F. P. Duffy, Jacqui Maher · Bell System Technical Journal · 1978 · 12 citations

Speech Sciences, Speech Signal Power, Communication +19