MOBILE ELECTRONIC COMMUNICATIONS USING INTERNET PROTOCOL

    公开(公告)号:US20210029252A1

    公开(公告)日:2021-01-28

    申请号:US17071409

    申请日:2020-10-15

    Applicant: TextNow, Inc.

    Abstract: A database stores unique associations between account identifiers and mobile-network telephone numbers assigned by a mobile network to mobile communications devices. The account identifiers are also associated with voice-over-IP (VoIP) telephone numbers. Voice calls between the mobile communications devices are made as voice-over-IP (VoIP) calls using respective VoIP telephone numbers. Tracking of the VoIP calls is performed through the mobile network using respective mobile-network telephone numbers, so that a prepaid balance can be enforced.

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