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</o:shapelayout></xml><![endif]--></head><body lang=EN-US link=blue vlink=purple><div class=WordSection1><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>Two points; #1 the more ports you have open, the greater your possible exposure. #2 AFAIK you should have 4 RTP ports for each line you wish to use (although you can tweak some parameter to make it 2) so 10000-10100 should actually be 10001-10120.<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>From:</span></b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'> asterisk-users-bounces@lists.digium.com [mailto:asterisk-users-bounces@lists.digium.com] <b>On Behalf Of </b>Carlos Alvarez<br><b>Sent:</b> Wednesday, October 03, 2012 9:46 AM<br><b>To:</b> Asterisk Users Mailing List - Non-Commercial Discussion<br><b>Subject:</b> Re: [asterisk-users] Call Termination Provider Madness<o:p></o:p></span></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>On Wed, Oct 3, 2012 at 7:35 AM, Chris Nighswonger <<a href="mailto:cnighswonger@foundations.edu" target="_blank">cnighswonger@foundations.edu</a>> wrote:<o:p></o:p></p><div><blockquote style='border:none;border-left:solid #CCCCCC 1.0pt;padding:0in 0in 0in 6.0pt;margin-left:4.8pt;margin-right:0in'><div><p class=MsoNormal><o:p> </o:p></p></div><p class=MsoNormal>At this point I only have ~40 extensions, so I took Michel's advise<br>and set my RTP range to 10000-10100. The default 10000 ports was a bit<br>more surface area than I want to expose.<o:p></o:p></p></blockquote><div><p class=MsoNormal><o:p> </o:p></p></div><div><p class=MsoNormal>If you think 100 or 10k RTP ports going to your voice server makes ANY difference in security, you really need to re-think this and study more. Not to be a dick or anything, but really, think about it.<o:p></o:p></p></div><div><p class=MsoNormal><o:p> </o:p></p></div><div><p class=MsoNormal><o:p> </o:p></p></div></div><div><p class=MsoNormal><o:p> </o:p></p></div><p class=MsoNormal>-- <o:p></o:p></p><div><p class=MsoNormal>Carlos Alvarez<o:p></o:p></p></div><div><p class=MsoNormal>TelEvolve<o:p></o:p></p></div><div><p class=MsoNormal>602-889-3003<o:p></o:p></p></div><div><p class=MsoNormal><o:p> </o:p></p></div><p class=MsoNormal><o:p> </o:p></p></div></body></html>