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Austin, Texas (dpa) – U.S. computer maker Dell Inc. plans to increase its annual revenues from USD 49 bln to 80 biln “within three to four years”, Dell chief Kevin Rollins announced.

Ericsson and Siemens Communications have completed interoperability tests between Siemens push-to-talk handsets and Ericsson infrastructure. Push-to-talk calls are one-way communication: while one person speaks, the other(s) listen. The right to speak is