Looking for some feedback on whether nat=yes and qualify=yes
will provide a workable solution in many cases? The * server is on a public address, no NAT, the UAs (sipura,
linksys, polycom) are behind various types of NAT. Obviously port mapping in the NAT device works, but what
about cases where there is no admin access possible to the NAT device? From what I have read nat=yes makes asterisk look at the udp
header instead of the SIP info for the UA IP address, and qualify=yes sends
keepalives in the form of frequent SIP OPTIONS queries. I think I also read that
nat=yes enables symmetrical RTP What I do not know is does it work in the real world? |
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