I just tried this on latest git and it worked fine for me. Can you pastebin the console debug output when you use it?
-MC

2011/4/2 嫖苧 <sc_zhangming@sina.com>
freeswitch-users��艇挫��

       uuid_hold command , freeswitch is not send HOLD  message. who know it.

        崑
撰��


        嫖苧
        sc_zhangming@sina.com
          2011-04-02
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