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The new device will support both the Time Division Multiple Access (TDMA) mobile phone service widely in use in the US as well as the GSM technology that is more popular in Europe and Asia but used by a few mobile carriers in North America.
Siemens first announced its planned S47 handset a year ago, saying it would support the TDMA 800MHz frequency as well as the GSM900 MHz band used in Europe and the GSM 1900MHz band operated in the US.
The handset will be launched "in conjunction with a major provider", Peter Zapf, president of mobile phones within Siemens' Information and Communication Mobile group, said.
Among the major operators of GSM services in the US are AT&T Wireless Services, Cingular Wireless and VoiceStream Wireless, which Deutsche Telekom acquired last year.
Nokia announced the Nokia 6340 in January, a handset that is capable of roaming between GSM, TDMA and analogue networks.