有谁知道 iOS 上这种提示怎么弹出来的? - V2EX
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denger
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有谁知道 iOS 上这种提示怎么弹出来的?

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  •   small class="gray">denger 2014-02-19 13:55:49 +08:00 4077 次点击
    这是一个创建于 4302 天前的主题,其中的信息可能已经有所发展或是发生改变。
    没安装 JD 客户端,没收到短信。
    10 条回复    1970-01-01 08:00:00 +08:00
    denger
        1
    denger  
    OP
       2014-02-19 13:56:48 +08:00
    补充大图:

    wheatcc
        2
    wheatcc  
       2014-02-19 14:00:01 +08:00
    不清楚~
    hypoyu
        3
    hypoyu  
       2014-02-19 14:03:47 +08:00
    『免提短信』
    uniway
        4
    uniway  
       2014-02-19 14:05:47 +08:00
    好像叫“闪信”,6、7年前很流行,可以不显示发信人号码
    denger
        5
    denger  
    OP
       2014-02-19 14:09:24 +08:00
    @hypoyu @uniway 什么原理呢? 这个发送需要收费吗?
    pfitseng
        6
    pfitseng  
       2014-02-19 14:16:54 +08:00 via Android
    对啊,以前我的西门子M55就改成可以发这种的,而且此条短信不能保存的
    hypoyu
        7
    hypoyu  
       2014-02-19 16:05:55 +08:00
    @denger 其实就是普通的短信

    http://www.gsm-modem.de/sms-pdu-mode.html 有以下描述:

    The SMS message, as specified by the Etsi organization (documents GSM 03.40 and GSM 03.38), can be up to 160 characters long, where each character is 7 bits according to the 7-bit default alphabet. Eight-bit messages (max 140 characters) are usually not viewable by the phones as text messages; instead they are used for data in e.g. smart messaging (images and ringing tones) and OTA provisioning of WAP settings. 16-bit messages (max 70 characters) are used for Unicode (UCS2) text messages, viewable by most phones. A 16-bit text message of class 0 will on some phones appear as a Flash SMS (aka blinking SMS or alert SMS).
    loniper
        8
    loniper  
       2014-02-19 16:53:21 +08:00
    卧槽,还有这种信息?今天刚收了一个京东快递,只有普通的短信
    DoubleJo
        9
    DoubleJo  
       2014-02-19 16:55:07 +08:00
    中学时候总发这种短信玩,阅后即焚的
    run2
        10
    run2  
       2014-02-19 17:01:13 +08:00
    电信运营商也不封它-。- 它们的`16-bit text message`怎么发出来的。
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