• The Three-Party Service enables a user to establish a three-way conversation, i. e. a simultaneous communication between the served user and two other parties.

    方业务使用户能建立一个通话服务的用户另两方之间同时进行通信

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  • This Recommendation provides the stage 2 service description of the Three-Party supplementary service.

    建议提供补充业务第2业务描述

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  • This Recommendation provides the stage 2 service description of the Three-Party supplementary service.

    建议提供补充业务第2业务描述

    youdao

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