NAT and firewalls transversal

Michael kr <[email protected]>
Newsgroups gmane.comp.voip.nist-sip
Message-ID <[email protected]>
Hello experts,

In certain situation, my UA selected ports are not
opened by a firewall, and the sip signaling does not
get back to it.

However: I can reach this UA by using the same port it
broadcast the SIP signaling with.

How can I reply on that port, using the stack?

Thanks,

Michael
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