您需要为文本电话用户安装单独的热线，并在文档中包含其号码。

You may need to install a separate hotline for text telephone users and include its number in the documentation.

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该号码就是用于安装服务器的端口号。

This number is the port number that is used to install the server.

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就在去年八月，俄罗斯就上演了一场诱骗android系统手机用户安装恶意软件的骗局，并且使用短信服务直接发送信息到某一个号码上而产生了额外的手机费用。

Last August, a scam in Russia tricked users into installing malicious software on Android phones, and using the SMS functionality to send messages to a number that charged a premium fee.

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