I mean part of RTP RFC? On Fri, Jan 14, 2011 at 2:41 PM, Bruce B <bruceb...@gmail.com> wrote:
> Hi Everyone, > > 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: > > 10200 > 10201 > 10504 > 10505 > > 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? > > Thanks >
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