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NAT can cause havoc with the RTP stream, but with the right firewall and design/config it can be made to work. I use VPN if at all possible to avoid these issues.<br>
<br>John Burk, Consultant
<br>Sent from my Blackberry</font></div>
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<b>From</b>: cisco-voip-bounces@puck.nether.net <cisco-voip-bounces@puck.nether.net>
<br><b>To</b>: cisco-voip@puck.nether.net <cisco-voip@puck.nether.net>
<br><b>Sent</b>: Fri Sep 24 08:02:38 2010<br><b>Subject</b>: [cisco-voip] NAT for Call Managers
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Is it recommended to use NAT on VoIP. I have two separate cluster one
for cisco call manager and other for Avaya. We are integrating both the
setups(h323). Is it okay to use NAT. Can someone provide me a document
which helps in this reference.<BR><br><BR>For what reason people
do not recommend it in the network, or is it the same that you do not
register your call managers with the domain server. Look forward to
hear.<br><BR><br><BR>Regards,<BR>Humayun Sami.<br><BR> </body>
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