<div dir="ltr">Does anyone know the correct information of my question. All are move round and round .<br><br><div class="gmail_quote">On Tue, Feb 21, 2012 at 7:28 PM, Kevin P. Fleming <span dir="ltr"><<a href="mailto:kpfleming@digium.com">kpfleming@digium.com</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div class="im">On 02/21/2012 07:51 AM, Alex Balashov wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
As many ports as required by the nature of the call, i.e. the<br>
protocol(s) used for the bearer.<br>
</blockquote>
<br></div>
For an IAX2 call, the answer is 'zero' for all of those call types (at least the ones that are supported in IAX2, not all of them are).<br>
<br>
For protocols that use RTP for media transport, two ports are required for each media stream (one for RTP, one for RTCP).<div class="im"><br>
<br>
-- <br>
Kevin P. Fleming<br>
Digium, Inc. | Director of Software Technologies<br>
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