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Non successful calls are due to, on the one hand, subscribers or customers and, on the other hand, to network connection problems. This article introduces a study of this phenomenon as for the existing mathematical models which simulate predictable behaviour of call attempts. This tool allows the analysis of estimated data and gives a valid approach to the results obtained in practice which eases the decision making process and the assessment of information related to billing or incomes. [ABSTRACT FROM AUTHOR]

This article presents information on the use of information services in Asian nations. CALIS is a key player in resource-sharing in China. This article outlines the roles CALIS plays, the operation service system CALIS constructed, the resources CALIS developed and the service CALIS provides. [ABSTRACT FROM AUTHOR]

At the end of the day, four things affect how you come across through the lens of your webcam. [ABSTRACT FROM AUTHOR]

The aluminium market has got an awful lot going for it as the stand-out metal on the London Metal Exchange, both in terms of price performance, at a six-year high near $2,370 per tonne, and record electronic outright turnovers which have been seen in excess of 30,000 lots daily. [ABSTRACT FROM AUTHOR]

DIDWW, the virtual numbers specialist, has expanded its range of services with the launch of a new Session Initiation Protocol (SIP) trunking solution. [ABSTRACT FROM AUTHOR]

BT-owned mobile operator EE has apologised for a call connection problems affecting its customer base throughout the UK. [ABSTRACT FROM AUTHOR]

Verizon is reportedly set to launch VoLTE HD voice calls, and will become the fourth major carrier in the US to roll out the service. [ABSTRACT FROM AUTHOR]