Posted: Fri Mar 20, 2009 5:35 am Post subject: [asterisk-biz] Antarctica.
Anyone know how phone service is delivered to Antarctica?
However it is, calling it is mighty expensive compared to typical LD
rates. But I'm mainly curious as to the exact medium and
infrastructure, as well as the commercial operator(s) involved.
--
Alex Balashov
Evariste Systems
Web : http://www.evaristesys.com/
Tel : (+1) (678) 954-0670
Direct : (+1) (678) 954-0671
Mobile : (+1) (678) 237-1775
_______________________________________________
--Bandwidth and Colocation Provided by http://www.api-digital.com--
Posted: Fri Mar 20, 2009 12:07 pm Post subject: [asterisk-biz] Antarctica.
More than likely probably some form of satellite service could be involved.
Tom
-----Original Message-----
From: asterisk-biz-bounces@lists.digium.com
[mailto:asterisk-biz-bounces@lists.digium.com] On Behalf Of Alex Balashov
Sent: Friday, March 20, 2009 2:31 AM
To: Commercial and Business-Oriented Asterisk Discussion
Subject: [asterisk-biz] Antarctica.
Anyone know how phone service is delivered to Antarctica?
However it is, calling it is mighty expensive compared to typical LD rates.
But I'm mainly curious as to the exact medium and infrastructure, as well as
the commercial operator(s) involved.
--
Alex Balashov
Evariste Systems
Web : http://www.evaristesys.com/
Tel : (+1) (678) 954-0670
Direct : (+1) (678) 954-0671
Mobile : (+1) (678) 237-1775
_______________________________________________
--Bandwidth and Colocation Provided by http://www.api-digital.com--
Posted: Fri Mar 20, 2009 5:44 pm Post subject: [asterisk-biz] Antarctica.
This I know; I was wondering about specifics.
Tom Moore wrote:
Quote:
More than likely probably some form of satellite service could be involved.
Tom
-----Original Message-----
From: asterisk-biz-bounces@lists.digium.com
[mailto:asterisk-biz-bounces@lists.digium.com] On Behalf Of Alex Balashov
Sent: Friday, March 20, 2009 2:31 AM
To: Commercial and Business-Oriented Asterisk Discussion
Subject: [asterisk-biz] Antarctica.
Anyone know how phone service is delivered to Antarctica?
However it is, calling it is mighty expensive compared to typical LD rates.
But I'm mainly curious as to the exact medium and infrastructure, as well as
the commercial operator(s) involved.
--
Alex Balashov
Evariste Systems
Web : http://www.evaristesys.com/
Tel : (+1) (678) 954-0670
Direct : (+1) (678) 954-0671
Mobile : (+1) (678) 237-1775
_______________________________________________
--Bandwidth and Colocation Provided by http://www.api-digital.com--
--
Alex Balashov
Evariste Systems
Web : http://www.evaristesys.com/
Tel : (+1) (678) 954-0670
Direct : (+1) (678) 954-0671
Mobile : (+1) (678) 237-1775
_______________________________________________
--Bandwidth and Colocation Provided by http://www.api-digital.com--
Sent: Friday, March 20, 2009 2:31 AM
To: Commercial and Business-Oriented Asterisk Discussion
> Subject: [asterisk-biz] Antarctica.
Quote:
Anyone know how phone service is delivered to Antarctica?
However it is, calling it is mighty expensive compared to typical LD rates.
But I'm mainly curious as to the exact medium and infrastructure, as well as
> the commercial operator(s) involved.
Quote:
--
Alex Balashov
Evariste Systems
Web : http://www.evaristesys.com/
Tel : (+1) (678) 954-0670
> Direct : (+1) (678) 954-0671
Quote:
Mobile : (+1) (678) 237-1775
_______________________________________________
--Bandwidth and Colocation Provided by http://www.api-digital.com--
>
Posted: Fri Mar 20, 2009 8:27 pm Post subject: [asterisk-biz] Antarctica.
On Fri, 2009-03-20 at 14:39 -0400, Alex Balashov wrote:
Quote:
This I know; I was wondering about specifics.
I think orbcomm has some coverage of that area as well. They claimed
98% of the earth most of the time and 2 minutes until one pops up in an
uncovered area.
You can always look for keplerian elements of telecom satellites and see
which are in polar orbit and which would go down that far. Some
geostationary (longer delay not typically used for voice) may be
reachable with a larger gain antenna (read bigger parabolic).
NASA offers "jtrack" free which is a web based tracking system for
satellites (they already have the keplerian elements for many up there)
and I think google earth also has them, so you can look for networks
that can at least make it reasonable and rule out the rest.
Then its an issue of who has what gear specifically.
I am assuming of course you already ruled out an easier way to find who
is doing what, using search engines ...
Google seemed to indicate that "telecast fiber systems inc" linked
antartica for a telecast, perhaps they are using the surplus bandwidth
for some voice.
Posted: Sat Mar 21, 2009 1:56 am Post subject: [asterisk-biz] Antarctica.
On Mar 19, 2009, at 11:31 PM, Alex Balashov wrote:
Quote:
Anyone know how phone service is delivered to Antarctica?
However it is, calling it is mighty expensive compared to typical LD
rates. But I'm mainly curious as to the exact medium and
infrastructure, as well as the commercial operator(s) involved.
When I was at Voxilla, we had an order for some PAP2T's that were
shipped to Antarctica.
Posted: Sat Mar 21, 2009 2:09 am Post subject: [asterisk-biz] Antarctica.
On Mar 19, 2009, at 11:31 PM, Alex Balashov wrote:
Quote:
Anyone know how phone service is delivered to Antarctica?
However it is, calling it is mighty expensive compared to typical LD
rates. But I'm mainly curious as to the exact medium and
infrastructure, as well as the commercial operator(s) involved.
It's delivered via satellite. I believe (though don't quote me on
this) that Palmer has the largest bandwidth to the continent, at least
for the US. Each nation probably re-routes their own number space
through to their bases on the southern continent.
Most numbers in McMurdo and Palmer are Colorado phone numbers that are
piped in through a Cisco platform. Most 'work' voice goes through
numbers that aren't distinguished in any way from regular NANPA number
space as far as billing goes. Apparently you're hitting some that are
using the +672 if you're talking about the price. I'm aware of very
few (if any?) numbers that are actually using the Antarctica numeric
prefix (+672) though perhaps there are a few.
---
John Todd email:jtodd@digium.com
Digium, Inc. | Asterisk Open Source Community Director
445 Jan Davis Drive NW - Huntsville AL 35806 - USA
direct: +1-256-428-6083 http://www.digium.com/
_______________________________________________
--Bandwidth and Colocation Provided by http://www.api-digital.com--
Posted: Sat Mar 21, 2009 2:09 am Post subject: [asterisk-biz] Antarctica.
Orbcomm, to my knowledge, is data-only and slow, asynchronous data at
that. I used them extensively for a vehicle tracking company I ran a
while back. I have a basement full of various Orbcomm gear, including
three new GSC100 handhelds - anyone want to make me an offer on it?
It still works great; in fact, they recently launched a few more birds.
The link to Palmer Station is geostationary, as are most ground
stations. I don't know which satellite is used for the Internet/voice
traffic. McMurdo and Scott are connected via Telecom New Zealand
satellite. See notes herein:
I seem to recall someone telling me that there were experiments with
Asterisk at McMurdo. More information would be interesting if anyone
has details.
JT
On Mar 20, 2009, at 2:22 PM, Trixter aka Bret McDanel wrote:
Quote:
On Fri, 2009-03-20 at 14:39 -0400, Alex Balashov wrote:
> This I know; I was wondering about specifics.
I think orbcomm has some coverage of that area as well. They claimed
98% of the earth most of the time and 2 minutes until one pops up in
an
uncovered area.
You can always look for keplerian elements of telecom satellites and
see
which are in polar orbit and which would go down that far. Some
geostationary (longer delay not typically used for voice) may be
reachable with a larger gain antenna (read bigger parabolic).
NASA offers "jtrack" free which is a web based tracking system for
satellites (they already have the keplerian elements for many up
there)
and I think google earth also has them, so you can look for networks
that can at least make it reasonable and rule out the rest.
Then its an issue of who has what gear specifically.
I am assuming of course you already ruled out an easier way to find
who
is doing what, using search engines ...
Google seemed to indicate that "telecast fiber systems inc" linked
antartica for a telecast, perhaps they are using the surplus bandwidth
for some voice.
---
John Todd email:jtodd@digium.com
Digium, Inc. | Asterisk Open Source Community Director
445 Jan Davis Drive NW - Huntsville AL 35806 - USA
direct: +1-256-428-6083 http://www.digium.com/
_______________________________________________
--Bandwidth and Colocation Provided by http://www.api-digital.com--
Posted: Sat Mar 21, 2009 8:28 am Post subject: [asterisk-biz] Antarctica.
On Fri, 2009-03-20 at 16:41 -0700, John Todd wrote:
Quote:
Orbcomm, to my knowledge, is data-only and slow, asynchronous data at
that. I used them extensively for a vehicle tracking company I ran a
while back. I have a basement full of various Orbcomm gear, including
three new GSC100 handhelds - anyone want to make me an offer on it?
It still works great; in fact, they recently launched a few more birds.
The link to Palmer Station is geostationary, as are most ground
stations. I don't know which satellite is used for the Internet/voice
traffic. McMurdo and Scott are connected via Telecom New Zealand
satellite. See notes herein:
Posted: Sun Mar 22, 2009 2:18 am Post subject: [asterisk-biz] Antarctica.
Telephone communication into or out of Antarctica is usually via
satellite, as there are no undersea cables linking Antarctica to any
other continent. Typically Iridium or Inmarsat is used for voice,
though some organizations use VoIP over other satellite data service.
Locally, there are traditional land lines, and some bases have
cellular service.
Sincerely,
Trevor Hammonds
On Fri, Mar 20, 2009 at 7:51 PM, Eric Chamberlain <eric@rf.com> wrote:
Quote:
On Mar 19, 2009, at 11:31 PM, Alex Balashov wrote:
> Anyone know how phone service is delivered to Antarctica?
>
> However it is, calling it is mighty expensive compared to typical LD
> rates. But I'm mainly curious as to the exact medium and
> infrastructure, as well as the commercial operator(s) involved.
When I was at Voxilla, we had an order for some PAP2T's that were
shipped to Antarctica.
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