AT&T To Launch 3G Service; Multimedia Partners Expected

AT&T Wireless, the third-largest U.S. mobile phone network, is expected to announce the launch of 3G high-speed services in four cities on Tuesday.

Japanese cell phone service provider NTT DoCoMO, a part-owner of AT&T Wireless; HP; Microsoft and RealNetworks are expected to attend the midmorning news conference (12 PM EST).

Some details on the conference and how to dial in

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