Hi,

I am looking for walkie-talkie over Wifi application to run on maemo
and let me call other persons connected to Internet over wifi for free.
Gizmo is ok, works fine.
But I need walkie-talkie to work peer-2-peer in ad-hoc mode too, having
2 maemo ad-hoc conncted over wifi for voice talk.
Ok. Range is small for internal wifi
but I don't expect anything superior, just free walkie-talkie talk.

I was told one of cell phones by Nokia already offered such feature,
called push to talk or the like to have VoIP talk over GPRS.
Ok. Just replace GPRS by Wifi and have the same working for maemo.

I you are aware of any such working application for Linux , Windows, Mac, please let me know or refer me to a nice place.

Darius

push-to-talk requires support in the phone network one uses.

as for what your asking about, if xmpp did voice, i would have said link-local xmpp...

but as it cant im out of suggestions...

No phone network required as walkie-talkie over wifi (title).

darius

You would need to set up a mesh network accessed by both the sending and recieving tablets. This was done recently by contractors working on the Dubai tower using VOIP over WIFI enabled mobile handsets.

Samsung Corp. Turns to Firetide to Ensure Communications at Construction Site of World's Tallest Building

I know it's not the answer you're looking for at all, but I think I would simply buy a couple of real walkie-talkies, they're cheap. It's much cooler to hold one up and say 'Zulu, roger that, five-niner' with a real walkie-talkie..

If you want to talk to somebody and your both connected to a wifi hotspot you could use skype.
But if you want what I think you want, which is two people connecting without a wifi spot then I'm not aware of any application.
I would also like to see this application, maybe its available using bluetooth even though the range would be short.

Thanks my friend.
Exactly what I am going to build.
What I need is low-cost (no-cost) solution (hardware cost + free brain work).
Concept of virtual mesh network by Firetide is ok, as it works fine and is reliable.
I am afraid, there is a small chance to afford such mesh network for private use from private (individual ) funding.

Successfully there is a chance such mesh netork to be built in a city planned by the developer , Sultan Ahmed Bin Sulayem, 40km far from my place of residence in next few years.

What is a chance to contact Dubai office and get first-hand experience
on use of walkie-talkie over wifi (what application is run ?)

Darius

Speak Freely
https://sourceforge.net/projects/speak-freely/

This software allows encrypted voice communication on an Ad-Hoc or Wireless network. In addition, there is a Debian version available for download that could be adapted into a Maemo version, if anyone is creative enough for the task.

You can install at one tablet or computer SIP server (e.g. openser) and create regular SIP client account at any maemo device which connects to your server. Also some Nokia phones support SIP

I think that there is a much simpler solution. You can install the bonjour (link-local) protocol on the tablets. Then, you will be able to connect from tablet to tablet using the built-in video talk client. Presumably, this would also work over an ad-hoc network...