<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<HTML><HEAD>
<META http-equiv=Content-Type content="text/html; charset=us-ascii">
<META content="MSHTML 6.00.2900.2627" name=GENERATOR></HEAD>
<BODY>
<DIV><FONT face=Arial size=2><SPAN class=629525713-26052005>Have an Asterisk on
a real IP collecting SIP calls through Internet and passing them to Telecom
Companies.</SPAN></FONT></DIV>
<DIV><FONT face=Arial size=2><SPAN class=629525713-26052005>Some SIP clients are
on a real IP, some others behind NAT.</SPAN></FONT></DIV>
<DIV><FONT face=Arial size=2><SPAN class=629525713-26052005>The issue is, when
SIP clients are calling each other, they use system resources and bandwith of
Asterisk server.</SPAN></FONT></DIV>
<DIV><FONT face=Arial size=2><SPAN class=629525713-26052005>The question
is:</SPAN></FONT></DIV>
<DIV><FONT face=Arial size=2><SPAN class=629525713-26052005>1. Can Asterisk
establish a P2P (w/o passing through Asterisk) call between a SIP client on a
real IP and another SIP client behind NAT?</SPAN></FONT></DIV>
<DIV><FONT face=Arial size=2><SPAN class=629525713-26052005>2. Is there any
efficient solution to place P2P calls between SIP clients behind
NAt?</SPAN></FONT></DIV>
<DIV><FONT face=Arial size=2><SPAN class=629525713-26052005>Thank
you.</SPAN></FONT></DIV>
<DIV><FONT face=Arial size=2><SPAN
class=629525713-26052005>Cenk.</SPAN></FONT></DIV></BODY></HTML>