On Mon, Sep 05, 2022 at 08:49:48PM +0000, Bill Horne wrote:
My callcentric VoIP phone stopped working yesterday, and it's still out.
Yesterday (Sunday, 9/4), my VoIP phone went dead. It's a three line
phone, and there are two VoIP services I use it for: Callcentric,
where I get my "home" phone number, and the Hamshack Hotline, a free
VoIP service for Amateur Radio operators like me. They both quit at
the same time.
Yesterday (Wednesday, 9/7), I got a call from someone at "Galaxy
Cablevision," and he told me that my VoIP lines are out-of-service
because of "Cee-Gee NAT." He did his best to convince me that the
ports used for the "new" Internet layout that my local cable company
is using can't be "mapped" to my VoIP phone, and that there was
nothing he could do about the problem.
I did my best to explain to him that I used to be a Certified NetWare Engineer(tm), and that I have been the Moderator of the Telecom Digest
for about fifteen years, and that my job gives me extraordinary access
to world-class experts on the subject of Network Address Translation,
the TCP three-way handshake, and VoIP in general, and that there was
no "port mapping" involved. I told him that I didn't need any ports
mapped, and that such capability wasn't what I had sought after.
He told me that my problem would be solved by a "Fixed IP Address,"
but when I advised him that I wasn't interested in paying for a
capability which isn't guaranteed to solve the problem, he said he'd
do some more research and get back to me.
So, I'd appreciate your help: please point me to a source of
easy-to-understand information about current VoIP practice, especially
as it relates to NAT of any flavor, and let me thank you in advance
for your help. I'd also like to know if there are more current
versions of the story about being born at night in the back of a
turnip truck, since I'd like to have answers ready if and when someone
at Galaxy Cablevision calls me again.
Bill Horne
P.S. I'll also call Alexis Rosen at Panix, and ask if he can support
the "OpenVPN" capability of my ASUS router. Here's hoping ...
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