[PLUG] O.T.VoIP and Satellite

Chuck Hast wchast at gmail.com
Mon Dec 29 23:31:38 UTC 2014


MIke
Thank you for the observations. I did test the connection, since I am using
cellular, I found several phone numbers to test against, and all of them
provide
good inbound audio but my outbound audio is just all corrupted.

I do not think that the DHCP assignment caused the problem, but I am trying
to figure out if something else was changed on the network at the same time.
i.e. different routing.

I know that normally ip addresses are not geo based, but it was always of
note
that in the past any search or application that took me to a map would
always
take me to a map of the area I live in, now since I am one HughesNet, I see
that I am now taken to sites that are no where near where I am, and I
figured
that it was probably where the gateway to the uplink to the satellites was
located. I know that they have several of them, so I thought that might be
the issue.

I need to get on a wired internet connection and put the uCell on it and
make
sure I do not have something going on with the outbound side of the device.
Inbound audio is so good, and it was working so well prior to the failure
that
I am left wondering.

On Mon, Dec 29, 2014 at 2:14 PM, Mike C. <mconnors1 at gmail.com> wrote:

> >
> > ------------------------------
> >
> > Message: 8
> > Date: Sun, 28 Dec 2014 23:05:21 -0800
> > From: Chuck Hast <wchast at gmail.com>
> > Subject: [PLUG] O.T.VoIP and Satellite
> > To: "Portland Linux/Unix Group" <plug at lists.pdxlinux.org>
> > Message-ID:
> >         <
> > CADNfBV8dMG_x4oqrL8edTQ1mz1Z8CmonhqghMuHqNaayfvDeqw at mail.gmail.com>
> > Content-Type: text/plain; charset=UTF-8
> >
> > Folks,
> > This is a issue that I have been trying to figure out, and I have been
> > talking to the two parties involved.
> >
> > I am a HughesNet user (that is all we have out in the woods here)
> > I have been using a AT&T microcell on the satellite link since July.
> >
> > When I moved here I was told that the microcell would probably not
> > work, or at best with a lot of latency, well it did quite well, I always
> > told people at the start of a call that I was on a satellite link and
> that
> > there would be some delay, no issues.
> >
> > Then on the 15th of Dec the outbound audio went to trash. I can
> > hear anything on the far end just fine, voice quality is good nothing
> > missing. But the outbound sounds totally distorted if there is any-
> > thing at all.
> >
> > AT&T has been working with me on it, so far they do not see any-
> > thing wrong with the microcell, HughesNet totally washes their
> > hands, the thing that I have observed is that this whole thing took
> > a dump after there was a DHCP assignment change ( Hughesnet
> > seems to change them all the time) the other thing that I had noticed
> > was that prior to that change, applications that tried to map your IP
> > address to your location usualy showed me as being somewhere
> > near Kansas City. Now they think I am near Chicago.
> >
> > Does anyone on the list have any experience with this sort of thing.
> > I am going to see if I can get a hub on between the microcell and
> > the rest of the network and try to sniff where it is talking to, then see
> > if I do a traceroute to see what manner of delays I see on the link.
> >
> > In my miserable experience with VoIP, if there was a issue it always
> > seemed like it showed up on both paths, but in this case it is only the
> > outbound, so I am assuming that something is causing a delay there
> > somewhere.
> >
> > The microcell comes on line and appears to be happy, but no joy
> > with the outbound audio.
> >
> >
> >
> >
> Hey Chuck - I'd start by going to this website and testing you VOIP
> connection and hopefully get some useful data.
> http://www.voipqualitytest.com/
>
> With many years of Network Engineering work experience, I'd say it's highly
> unlikely this problem is caused by a DHCP assignment change. Especially if
> the only change in your internet connection is outbound voip call quality.
>
> I also wouldn't put too much into geo-ip mapping either. ISPs are assigned
> blocks of ip addresses from IANA and those assignments are not
> geographically based. Geo-ip location takes extra logic, such as Google's
> My Location service which requires a browser that supports W3C's Geolcation
> API. Google also makes use of it by getting your web browser to provide
> information an wifi access points nearby.
>
> Cheers,
>
> Mike
> _______________________________________________
> PLUG mailing list
> PLUG at lists.pdxlinux.org
> http://lists.pdxlinux.org/mailman/listinfo/plug
>



-- 

Chuck Hast  -- KP4DJT --
Glass, five thousand years of history and getting better.
The only container material that the USDA gives blanket approval on.



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