Links.xHausted.de

		yate.ro/opensource.php
		code.google.com/p/csipsimple
		lumicall.org
		ostel.co
		www.linphone.org
		sflphone.org
		www.gnutelephony.org/index.php/GNU_SIP_W...
		freeswitch.org
		jitsi.org
		code.google.com/p/csipsimple
		www.csipsimple.com
		www.sipml5.org
		jitsi.org
		adhearsion.com
		www.ekiga.org
		www.jitsi.org
		www.linphone.org
		www.asterisk.org
		www.gnutelephony.org
		www.bellsip.com
		www.sipgate.de
		ekiga.org