Hi,
I am using Openser 1.2 and all the UAs that register to it are only PAP2 or
SPAs. But all these UAs are on a private network.
I tried using the NAT ping method from Openser to keep the NAT port open, but
still sometimes the NAT port gets blocked by some NAT boxes. I tried keeping
the interval as 25 seconds.
So then I tried sending Keep Alive Notify messages from the UAs itself towards
my Openser, but there I see a strange problem.
The problem is like the device does not send the notify message from the same
port which it registered from in the first place. So the port which is stored
in the locaion table gets blocked and again the user is not able to receive
calls. The user is able to receive calls only after it registers again but then
again it is inconsistent.
Has anyone worked with PAP2 and Openser and has got some best method to
maintain the NAT ports open so that the user receive calls consistently.
I also wanted to know what is more efficient, the UAs sending keep-alives or
Openser sending NAT-ping?
Thanks in advance,
w/regards,
Jayesh
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