Telephone Call Duration Measurement Reference System

Call me--mobile telephone blues.

The development of mobile telephone communication technology and its availability on a worldwide scale has been widely recognised as a force for good. There have been, however, concerns about the possible harmful effects of prolonged exposure to this technology. Two articles in this issue investigate possible harmful effects of mobile telephone use. Seckin and colleagues investigate the possibl...

Vocal corollary discharge communicates call duration to vertebrate auditory system.

Corollary discharge is essential to an animal's ability to filter self-generated from external stimuli. This includes acoustic communication, although direct demonstration of a corollary discharge that both conveys a vocal motor signal and informs the auditory system about the physical attributes of a self-generated vocalization has remained elusive for vertebrates. Here, we show the underlying...

Forecasting Arrivals to a Telephone Call Center

Accurate forecasting of call arrivals is critical for staffing and scheduling of a telephone call center. We develop methods for day-to-day and dynamic within-day forecasting of incoming call volumes. Our approach is to treat the intra-day call volume profiles as a highdimensional vector time series. We propose to first reduce the dimensionality by singular value decomposition of the matrix of ...

Predictive Dialing for Outbound Telephone Call Centers

Interruption Management and Telephone Call Screening

Notification-oriented computer interfaces are growing in importance, as is our understanding of how users manage interruptions. To gain insights relevant to the design of such interfaces, this study explored telephone call screening as a common example of how people manage technology-driven interruptions in their everyday residential environment. Survey results showed that audio screening is a ...