I found this article that might provide some sources for you.  They do list Skype as being the best and most popular though.  You just need to make sure though that all of your potential participants have a skype account.<br>

<a href="http://www.geekersmagazine.com/best-free-online-conference-call-services.html">http://www.geekersmagazine.com/best-free-online-conference-call-services.html</a><br><br clear="all">Ryan Palmer<br>Technology Integration Specialist<br>

MSAD#61 Lake Region Middle School<br><br><br><div style="text-align:left" align="left"><font style="font-family:Times New Roman;font-size:12pt;color:rgb(0, 0, 0)" color="#000000" face="Times New Roman" size="-0">CONFIDENTIALITY NOTICE: This e-mail and any attachments are confidential</font></div>


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<br><br><div class="gmail_quote">On Mon, Apr 25, 2011 at 10:57 AM, Shawn Kimball <span dir="ltr"><span>&lt;shawnkball@<a href="http://gmail.com">gmail.com</a>&gt;</span></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex;">

I have been asked to set up a telephone conference call for 12-13 people.  Can anyone suggest a free, dependable solution? <br><br>Thank you in advance!<br><br>Shawn <br clear="all"><br>-- <br>Shawn Kimball<br><a href="mailto:[log in to unmask]" target="_blank"><a href="/cgi-bin/wa?LOGON=A3%3D1104%26L%3DACTEM-INTEGRATORS%26E%3Dquoted-printable%26P%3D176842%26B%3D--001636ef0c3b6ddc4404a1c1ec26%26T%3Dtext%252Fhtml%3B%2520charset%3DISO-8859-1%26pending%3D" target="_parent" >[log in to unmask]</a></a><br>


<br>Technology Integration Specialist<br>Hampden Academy  <br>Hampden, Maine  USA<br><a href="tel:207-735-3704" value="+12077353704" target="_blank">207-735-3704</a> cell<div><br></div><div><span style="font-family:Times;font-size:medium"><i>All that is valuable in human society depends upon the opportunity for development accorded the individual.  --Albert Einstein</i></span></div>


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