I mean part of RTP RFC?<br><br><div class="gmail_quote">On Fri, Jan 14, 2011 at 2:41 PM, Bruce B <span dir="ltr"><<a href="mailto:bruceb444@gmail.com">bruceb444@gmail.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex;">
Hi Everyone,<div><br></div><div>I am just tweaking a pfSense router and learning lots about NAT etc....I noticed that each call uses four UDP port for RTP. Here is an example of port for a call I made:</div><div><br></div>
<div><div>10200</div><div>10201</div><div>10504</div><div>10505</div></div><div><br></div><div>Seems like they are random in pair. I have a restriction of 10000-11000 in my rtp.conf so that makes sense. But why use 4 ports per call? is that part of SIP RFC?</div>
<div><br></div><div>Thanks</div>
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