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--></style></head><body lang="EN-US" link="blue" vlink="purple"><div class="WordSection1"><p class="MsoNormal">Hi All:</p><p class="MsoNormal"> </p><p class="MsoNormal"> We have seen many PBX NAT’ed behind a Firewall that does not do the Sip ALG correctly. Most cases putting the Private IP in the Contact header and the ACME responds back to the Private IP.</p>
<p class="MsoNormal"> </p><p class="MsoNormal">Example call inbound to the PBX, the PBX sends a 200 OK (as call is answered) with a Private IP in the contact header. ACME sends the ACK back to the Private IP blackholing it.</p>
<p class="MsoNormal"> </p><p class="MsoNormal">I have seen SBC’s that do adjust to the Layer 3 IP:port if they notice Private IPs in the SIP signaling. Is there a setting on ACME to do that?</p><p class="MsoNormal"> </p><p class="MsoNormal">
Thx,</p><p class="MsoNormal">UK</p></div></body></html>