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Frequently Asked Questions
- Long Range Phones
Q. I'm not sure what you mean by "line access" and "power
at base". Our house is located in the absolute middle of nowhere
and the phone company has no desire to run a cable across 30 miles of
desert for one residence. I would like to be able to use my modem, however,
even half-duplex voice only would be wonderful! What are my options?
A. I think the terms got a little confusing because we're talking about
two different kinds of systems here - satellite and long range phone service.
The long range service is less expensive but you need a telephone pole,
a neighbor, or business that will let you install an antenna and extra
jack in their building. With the telephone pole installation method, you
would also have the expense of adding a small PV system - probably about
$800 (depends on how long you tend to talk per day).
The basic system itself with your range and fax/modem capability should
be in the $4000 or less range. The satellite option would be less, maybe
$3600 but you would have use-time charges of 90 cents/minute.
Q. I would like more information on your long rang phones. Specifically
how does it work, initial cost, and connect charges?
A. Our long range phones work like a typical cordless phone in a house.
You have a base unit that hooks into a phone line and a remote handset
where you can receive calls and call out. Phone charges are the same as
a normal, local call-long distance if you call far away. No extra connect
charges or time charges like with a cellular phone.
They're designed for use in the country, I don't recommend them in an
urban area. There are many types depending on the features (just voice,
fax, modem, multi-line, etc.), the distance between base and remote, and
the terrain between base and remote.
The least expensive way to hook it up is to get a neighbor or local business
with phone service to install an extra line in their building. You could
also hook up on a telephone pole but this adds $800 or so (depending on
how long you expect to talk) for a solar electric system on the pole.
They start at $550 and go up depending on the above factors. If you describe
your site and which features you need, we can recommend something for
you.
Q. We are missionaries in Cote d'Ivoire, West Africa and will soon be
moving into a village where there is no electricity or telephone service.
Our existing teams in remote locations use ham radio for daily contact,
however, licenses have been a problem to obtain and maintain. Currently
one of our stations has been unable to contact our main base, or anyone
for that matter, for several months. As we move into a new work we do
not desire to face the same situation. We have not yet purchased a ham
radio and were wondering if it would be wiser to go with a wireless phone
system. We would be located about 6km from the nearest phone lines and
10km from the nearest phone. From your catalog it is unclear whether or
not these phones operate on existing phone lines through the local telephone
company or if they are private frequencies. Any additional information
you could send would be greatly appreciated.
A. A wireless phone system sounds like the perfect solution in your situation.
It's the same as having a direct phone link in your house. You would have
regular fax/modem capability as well as full duplux phone service. They
do operate through the existing phone company and just plug into a regular
phone jack. The full fax-modem model would be $3200 and if you could get
by with only phone a system may only be in the $1000 range. A lot depends
on the terrain. Is it flat, mountainous, hilly, jungle?
Q. what maximum workable BAUD rate can be expected for digital use of
a Telenexus remote system, or does this depend upon the particular site?
A. It mainly depends on which phone system you get and what kind of computer
system you use. For best performance, I would recommend Telemobine over
Telenexus. Here are some details:
4 megabit possible. Inexpensive models G3 fax compatible 9600 baud old
stuff sometimes drops to 4800, newer models stable. Some can switch from
computer to fax input
Detail series - depends on the number of channels, typically 4800; Rate
will be faster 6400 modem, computer to computer up to 33.8
Digital systems, MTel series up to ISDN formats 80,000 and 160,000 baud
2 megabit systems - point to multi-point
1200 typical with nearly any point to point for any analog path band
but can tweak up to 2400 baud. (Same for Telemobile)
RTel new stuff pending but up to 2400 out f the box, PTels 2400 with
tweaking DTel up to (digital w/o ISDN) 19.2 and 64 kilobit version - up
to 28.8 but all modem settings not possible.
Hope this isn't too confusing - we're trying to clarify all this but
it's hard because there are so many variables.
Please e-mail technical related comments or questions to technical@thesustainablevillage.com
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