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http://www.divmod.org/Home/Projects/Shtoom
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http://www.gizmoproject.com
linphone + iptel
http://www.cure.nom.fr/article.php?theme=Linux&id_fic=23
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http://www.voip-info.org/wiki/view/Sipura
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http://blog.tmcnet.com/blog/tom-keati...skype/ip-thinking-skype-pda-phone.asp
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http://blog.vrplumber.com/1275
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http://blog.vrplumber.com/1297
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http://blog.vrplumber.com/1317