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Telephone communications art; so vitally important to public health and safety that special efforts must be made to prevent disruption of these services by a destructive earthquake.

With the growing use of IP networks, today's messaging, voice and video communications rely increasingly on Session Initiation Protocol (SIP).

The synthesis of a new series of mixed phenylene-thiophene oligomers is reported; 2,5-bis(4-n-hexylphenyl)thiophene (dH-PTP, 1), 5,5'-bis(4-n-hexylphenyl)-2,2'-bithiophene (dH-PTTP, 2), 5,5{''}-bis

This paper addresses the user friendliness issue in a layout system.

To ease automatic optical defragmentation, we present a programmable SDN controlled transmitter prototype with a fast wavelength and bitrate switching.

EBES4 is an electron-beam exposure machine designed for accurate submicron lithography with good throughput.

Echo can be a problem in long distance transmission.

Echo may be experienced by talkers on long telephone connections when conditions exist analogous to those producing acoustic echoes, i.e., a two-way transmission path, a point of reflection, a perc

III a companion paper by J. W. Emling and D. Mitchell, 1 it was shown that the problems due to telephone echoes increase as the propagation time between speakers increases.

Mobility Solutions pioneered a product-based environmental management system (PBEMS) to formally address the impacts of wireless hardware products on the environment throughout the entire product l