Thanks for this valuable information, John!
On 31/01/16 22:34, Pete Masters wrote:
Really interesting, John.... Thanks for the post. Just conducted
training in DRC on data collection and base mapping. We tried to focus
as much as possible on offline solutions. Wish I'd read this before
we'd been, not just after! ;)
Pete
On 31 Jan 2016 20:35, "john whelan" <jwhelan0...@gmail.com
<mailto:jwhelan0...@gmail.com>> wrote:
I've been playing around with Serval software on Android. Ideally
it needs a wifi mesh set up using multiple firmware modified
TP-Link MR3020 portable routers with custom software connected to
a small radio device which turns it into a mesh extender.
The original concept was to turn the smartphone into a router but
the latest Android software well anything above 2.2 denies access
to do this. Besides which rooting the phone in this manner is not
good from the security point of view.
However if you are running Windows 10 and your Laptop supports it,
most should, you can turn your laptop into a wifi hot spot that
other devices can connect to. Note you should not need to be
connected to the Internet for this to work.
Translation Android smartphones running Serval within say 100
meters of the laptop can now talk to each other. I haven't tried
a phone call, I don't have two Smartphones to hand, but messaging
certainly works.
You should also be able to transfer files certainly from one
smartphone to another and if Serval doesn't support file transfer
to the host laptop there are other apps around that do. So things
like the latest maps for Osmand etc can be brought down once to
the laptop then propagated out to smartphones or a smartphone sent
by mail, mule etc to the wifi hub can then connect and distribute
files etc.
I haven't looked at the implications of interconnecting laptops
perhaps with cat 5 cables and although phone calls should be fine
across one wifi hub theoretically each hub used in the hops adds a
small delay so voice quality over multiple hops may not be ideal.
Cheerio John
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