phone.comのDTDがあったんだ。

使っている人がもしいたら、openwave.comに変更しましょう。

以下は、http://developer.openwave.com/dvl/より抜粋

Openwave is retiring the location of the old WML 1.1+ and WML 1.3+ DTDs. If you have any applications which are using either DTD served off of phone.com (e.g. http://www.phone.com/dtd/wml11.dtd or http://www.phone.com/dtd/wml13.dtd) please update your code to reference http://www.openwave.com/dtd/wml11.dtd or http://www.openwave.com/dtd/wml13.dtd. The old phone.com URLS are subject to disappear within 90 days. If you have any questions about the change or what it means to you, please feel free to post in the Developer Forums.