CAA contactphone 屬性

CAA contactphone Property

SYNTAX: contactphone <rfc3966 Global Number>

語法：contactphone <rfc3966 Global Number>

The CAA contactphone property takes a phone number as its parameter. The entire parameter value MUST be a valid Global Number as defined in RFC 3966, Section 5.1.4, or it cannot be used. Global Numbers MUST have a preceding + and a country code and MAY contain spaces as visual separators.

CAA contactphone 屬性接受電話號碼作為其參數。整個參數值應（MUST）為 RFC 3966 第 5.1.4 節 所定義的有效全球號碼（Global Number），否則不得使用。全球號碼應（MUST）以 + 開頭並包含國碼，且得（MAY）包含空格作為視覺分隔符號。

The following is an example where the holder of the domain specified the contact property using a phone number.

以下為網域名稱持有人使用電話號碼指定聯絡屬性之範例。

$ORIGIN example.com .
CAA 0 contactphone "+1 555 123 4567"

The contactphone property MAY be critical if the domain owner does not want CAs who do not understand it to issue certificates for the domain.

若網域名稱擁有者不希望無法解析 contactphone 屬性的憑證機構（CA）對該網域名稱簽發憑證，contactphone 屬性得（MAY）設為關鍵（critical）。