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<p>Dear OpenSIPS-users.</p>
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<p>I'm working with OpenSIPS and softphones successfully, since some months ago. All my softphones can register on OpenSIPS very well.</p>
<p>All was ok while this SIP proxy and the softphones was all running in the same local network.</p>
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<p>Today, I have just created a new isolated network and I put my OpenSIPS there. That is, now my OpenSIPS is behind a NAT from the point of view of all softphones. In this case, when a softphone tries to register on OpenSIPS, it get the answer: "Status: 403
Preload Route denied".</p>
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<p>I have studied about this issue today (RR Module) including the answer found here:
<a title="Ctrl+Clique ou toque para seguir o link" id="LPlnk788339" href="http://comments.gmane.org/gmane.comp.voip.opensips.user/24120">
http://comments.gmane.org/gmane.comp.voip.opensips.user/24120</a> .</p>
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<p>According to that answer I could comment, in opensips.cfg file, the part that uses the function loose_route(). However it caused the "too many hops" problem.
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<p>Then, after reading more discussions, I have put an alias in my OpenSIPS.cfg script. It solved the issue, but I'm not sure if it is a good solution.</p>
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<p>Could someone explain a bit about the issue I'm dealing with, please? I'm missing some fundamentals here, for sure. What could be an alternative solution?
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<p>Is there some way of "fixing" some header in the SIP REGISTER request, by means of OpenSIPS, so that it could accept the SIP REGISTER without issues?</p>
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<p>Any hint will be very helpful!!</p>
<p>Thanks alot!<br>
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<div class="PlainText">RODRIGO PIMENTA CARVALHO<br>
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