Anyone locally installing Asterisk based PBX systems?
Steven C. Peterson
scp at mainstream.net
Fri Mar 17 00:27:01 EST 2006
Bruce Dawson wrote:
> Steven C. Peterson wrote:
>
>> hey on a similar not. I am looking for information on setting up a
>> completely new network on mobile platform (U.S.T.S State of Michigan).
>> I am currently at the Great Lakes Maritime Academy and we have received
>> a new training vessel from MARAD. it is an ex navy ship so everything is
>> MIL-SPEC
>> it has been wired with cat 6 to all berthing spaces and the pilot house.
>> they all currently terminate to one punch block with a total 48 ports.
>>
>> what we need is network that can dynamically switch between a satilite
>> Internet connection and a 802.11a/b/g (to be installed) wireless link to
>> the academy building (about 120 feet off the stern, when she is in home
>> port)
>>
>> we also want to install wireless throughout the ship (altho that will be
>> hard with steel walls every ware)
>> and replace the dynamo driven DC-squawk boxes with a modern intra ship
>> comunications system (I am thinking asterisk phone in most Berthing
>> spaces and wireless hand sets for the captain, the chief and the watch
>> officers)
>>
>
> I'd keep the squawk boxes and just not use them except when everything
> else fails (which it will)...
>
not really removing them (that would be next to impossible). but
replacing them as the primary intra ship communication system
> wifi doesn't work in a steel ship - unless you're in the same
> compartment as the AP. And even then, things can get "weird". I
> definitely wouldn't want to rely on it in an emergency.
>
>
above the 01 the walls are made of a very thin sheeting (it flexes when
you push on it) with fire retardant foam, bellow the 01 you have 1/4inch
steal plate rooms mounted on rubber noise dampers
(gotta love having an old navy spy ship). as i said the 01/02/03/pilot
house have cat 6 on them. what the instructors and the academy want is a
way for the captain and the chief to reachable in all
compartments with out having to ring every phone/handset to find him. we
would need phone in the engineering spaces (00/tank top) to much noise
(both sound and rf)
more i am looking for ideas on how to get what they want or at least an
amenable compromise.
>> when in port we want the cadets to be able to access the inter net via
>> the wireless link. when at sea we only want email shuttled back and
>> forth from the academy's Novell mail server over the satilite.
>>
>
> That's a simple firewall setup - you can even rig it so that the switch
> occurs automatically when the 802.11g signal from shore is lost. There
> are numerous antennas you can connect to any 802.11g router. But few, if
> any, won't survive a sea journey.
>
I have found some 1-4ghz deep sea antennas that we should be able to use
for that task.
>
>> I have a little experience with this stuff but only on a very small
>> scale (5-6 computers)
>>
>
> Setting up the ship-shore network isn't a problem of scale - its a
> problem of dynamic aiming and survivable components.
>
>
dynamic aming not much of an issue at less than 200 feet. when she is in
home port, she is tied tight as we have less than 2feet clearance to the
lake bed
BTW the ship is on lake Michigan and most likely will not be going
outside of Huron or superior
>> any help you all can offer would be great.
>>
>
>
--
Steven C. Peterson
(231)995-1442 [Dorm]
(603)566-0755 [Cell]
scp at mainstream.net
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