I have a FreePBX system with PRI trunks that's doing a number of things very
nicely, but frustrating me in one area.
I am using a Grandstream GXW-4008 in an off-premises location to provide
"POTS" service on four ports (this device worked fine in an early
application using a hardware VPN to the Asterisk server).
The Grandstream has a public static IP port, as does the Asterisk server.
Extensions 1021, 1022, 1023, and 1024 register just fine.
A ring group, 1020, distributes calls to these extensions and they handle
incoming calls "in hunt" as I'd expect.
Calls on the first port are consistently fine.
Calls on the other ports are fine for a day or more, then they lose audio or
have one-way audio.
One mystery for me is that the first port always continues to work.
I've assumed that this is some sort of UDP port problem, but I've
Googled
and studied stuff on-line and haven't figured out what I should be doing to
fix it.
I'd really appreciate some help.
--Don
Don Kelly
PCF Corp
People Come First
651 842-1000
651 842-1001 fax
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