Patent ReferencesBulletin board resource for communication system access Contacting device for standard chip card and SIM card Radio having memory means for storing radio user validation code Automatic number assignment module selection for mobile telephone Wireless terminal having digital radio processing with automatic communication system selection capability Radiotelephone having a plurality of subscriber identities and method for operating the same Patent #: 5764730 InventorAssigneeApplicationNo. 858619 filed on 05/19/1997US Classes:455/435.2, System selection379/357.01, Insertable control element or circuitry (e.g., card)455/558Card control elementExaminersPrimary: To, Doris H.Attorney, Agent or FirmForeign Patent References
International ClassH04B 001/33AbstractA telephone, such as a radiotelephone, is provided having the capability to concurrently operate with two subscriber identification module (SIM) cards. The telephone advantageously permits a single phone to have two telephone numbers associated therewith.Other References
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