HTML 电话:link 转紧急电话
HTML tel: link to emergency number
如何创建 HTML <a href="tel:"></a>
link 到 911
或 112
等紧急号码?
The
phone number can be represented in either global or local
notation. All phone numbers MUST use the global form unless they
cannot be represented as such.
[Emergency numbers ("911", "112")] cannot be represented in global form and
need to be represented as a local number with a context.
从 local-context section 我发现理解“本地上下文”是什么并不容易,更不用说对于这种情况的正确理解是什么了。它列出了像 houston.example.com
这样的域前缀或像 +1
这样的数字前缀,并且在一段中它说
A context consisting of the initial digits of a global number does
not imply that adding these to the local number will generate a valid
E.164 number. It might do so by coincidence, but this cannot be
relied upon. (For example, "911" should be labeled with the context
"+1", but "+1-911" is not a valid E.164 number.)
但是这一段的措辞又很混乱。
是
<a href="tel:+49-112">112</a>
现在是正确的方法,它不是有效的 E.164 号码这一事实无关紧要吗?
或者它不是有效的 E.164 号码是个问题吗?
In some other places 我看到人们在使用
<a href="tel:112;phone-context=emergency.example.com">112</a>
<a href="tel:112;phone-context=+49">112</a>
但是当我在 Android 上点击 link 时,拨号器会打开号码
112;746632668398+49
引用的 Section 5.1.5 RFC 声明
A context consisting of the initial digits of a global number does
not imply that adding these to the local number will generate a valid
E.164 number. It might do so by coincidence, but this cannot be
relied upon. (For example, "911" should be labeled with the context
"+1", but "+1-911" is not a valid E.164 number.)
我对此的解释是,紧急号码应以其特定国家/地区的前缀为前缀,即
- 在美国,
911
应用作 <a href="tel:+1-911">911</a>
- 在德国
112
应该用作 <a href="tel:+49-112">112</a>
该段的其余部分是关于此语法不符合 E.164 建议的。据我了解,E.164 在这种情况下是无关紧要的。
如何创建 HTML <a href="tel:"></a>
link 到 911
或 112
等紧急号码?
The phone number can be represented in either global or local notation. All phone numbers MUST use the global form unless they cannot be represented as such. [Emergency numbers ("911", "112")] cannot be represented in global form and need to be represented as a local number with a context.
从 local-context section 我发现理解“本地上下文”是什么并不容易,更不用说对于这种情况的正确理解是什么了。它列出了像 houston.example.com
这样的域前缀或像 +1
这样的数字前缀,并且在一段中它说
A context consisting of the initial digits of a global number does not imply that adding these to the local number will generate a valid E.164 number. It might do so by coincidence, but this cannot be relied upon. (For example, "911" should be labeled with the context "+1", but "+1-911" is not a valid E.164 number.)
但是这一段的措辞又很混乱。
是
<a href="tel:+49-112">112</a>
现在是正确的方法,它不是有效的 E.164 号码这一事实无关紧要吗?
或者它不是有效的 E.164 号码是个问题吗?
In some other places 我看到人们在使用
<a href="tel:112;phone-context=emergency.example.com">112</a>
<a href="tel:112;phone-context=+49">112</a>
但是当我在 Android 上点击 link 时,拨号器会打开号码
112;746632668398+49
引用的 Section 5.1.5 RFC 声明
A context consisting of the initial digits of a global number does not imply that adding these to the local number will generate a valid E.164 number. It might do so by coincidence, but this cannot be relied upon. (For example, "911" should be labeled with the context "+1", but "+1-911" is not a valid E.164 number.)
我对此的解释是,紧急号码应以其特定国家/地区的前缀为前缀,即
- 在美国,
911
应用作<a href="tel:+1-911">911</a>
- 在德国
112
应该用作<a href="tel:+49-112">112</a>
该段的其余部分是关于此语法不符合 E.164 建议的。据我了解,E.164 在这种情况下是无关紧要的。