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<TITLE>NATHelper module - need some explanation</TITLE>
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<P><FONT SIZE=2 FACE="Arial">Hi,</FONT>
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<P><FONT SIZE=2 FACE="Arial">In this network topology: </FONT>
<BR><FONT SIZE=2 FACE="Arial">[UA 1]---[(open)SER+FW/NAT]---[internet]---[FW/NAT]---[UA 2]</FONT>
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<P><FONT SIZE=2 FACE="Arial">UA 1 can call UA 2 (and the opposite) since NATHelper has changed header (Contact, SDP, …) AND UA 2 is registered on the same (open)SER</FONT></P>
<P><FONT SIZE=2 FACE="Arial">Now if UA 2 is registered on another server, is the NATHelper still working efficiently ?</FONT>
<BR><FONT SIZE=2 FACE="Arial">What about NAT pinging and the "NAT binding keep alive" features in this case ?</FONT>
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<P><FONT SIZE=2 FACE="Arial">Thanks in advance,</FONT>
<BR><FONT SIZE=2 FACE="Arial">Christophe </FONT>
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