像number存在吗?

As we use

当我们使用

<a href="tel:number">number</a> or <a href="mailto:mailid>mailid</a>

for telephone number & email, does anything like <a href="fax:number">number</a> for fax exist?

对于电话和电子邮件，是否存在number for fax ?

1 个解决方案

#1

Yes, the tel, fax and modem URL Schemes are discussed in https://www.ietf.org/rfc/rfc2806

是的，电话、传真和调制解调器URL方案在https://www.ietf.org/rfc/rfc2806中讨论

2.3 "fax" URL scheme

The URL syntax is formally described as follows (the definition reuses nonterminals from the above definition). For the basis of this syntax, see [RFC2303] and [RFC2304].

URL语法的正式描述如下(定义重用来自上述定义的非终端)。基于此语法，请参见[RFC2303]和[RFC2304]。

  fax-url          = fax-scheme ":" fax-subscriber
  fax-scheme       = "fax"
  fax-subscriber   = fax-global-phone / fax-local-phone
  fax-global-phone = "+" base-phone-number [isdn-subaddress]
                     [t33-subaddress] [post-dial]
                     *(area-specifier / service-provider /
                     future-extension)
  fax-local-phone  = 1*(phonedigit / dtmf-digit /
                     pause-character) [isdn-subaddress]
                     [t33-subaddress] [post-dial]
                     area-specifier
                     *(area-specifier / service-provider /
                     future-extension)
  t33-subaddress   = ";tsub=" 1*phonedigit

The fax: URL is very similar to the tel: URL. The main difference is that in addition to ISDN subaddresses, telefaxes also have an another type of subaddress, see section 2.5.8.

传真:URL与电话:URL非常相似。主要的区别是，除了ISDN子地址之外，telefax还有另一种子地址类型，参见2.5.8节。

Example:

<a href="fax:[phone]">+358.555.1234567</a>

However, as per the comments below, RFC 2806 was obsoleted by RFC 3966 and you should just use the tel URI scheme:

然而，如下面的评论所示，RFC 2806被RFC 3966淘汰，您只需使用tel URI方案:

The "tel" URI does not specify the call type, such as voice, fax, or data call, and does not provide the connection parameters for a data call. The type and parameters are assumed to be negotiated either in-band by the telephone device or through a signaling protocol such as SIP. This document obsoletes RFC 2806.

“tel”URI没有指定调用类型，例如语音、传真或数据调用，并且不提供数据调用的连接参数。假定类型和参数可以通过电话设备或通过信令协议(如SIP)在带内进行协商。此文档废弃RFC 2806。

RFC 3966 was updated by RFC 5341 to formalize URI parameters and require them to be registered with IANA. I am including these here for the sake of completeness. They do not contain any additional information on fax devices.

RFC 3966由RFC 5341更新，以规范化URI参数，并要求它们在IANA中注册。为了完整性，我在这里包含这些内容。它们不包含任何传真设备上的附加信息。