I'm interested in all things p2p and trying to learn if Software Defined Radio and HAM/sideband radio could be brought into use for resource-poor contexts... Count me in, Bjoern, time-permitting. Best,
Rupert On 11 Jan 2018 14:15, "Bjoern Hassler" <bjohas...@gmail.com> wrote: > Hi John, Hi Philippe, > > Thanks for the post. I'd written this reply before Philippe posted, but > not hit sent, sorry. Let me send it anyway. > > To explain further: Unless one router extends the network of the other, > each phone would be behind a firewall created by the router. So you'd have > to place the phone in the DMZ or port-forward on the router. Using > https://en.wikipedia.org/wiki/CSipSimple might be especially helpful if > you are doing point-to-point WiFi (without internet connection of either > router). A "192.168.x.x" is network internal, so you won't be able to > connect between "192.168.y.y". And even then, as Philippe points out, the > address of the router may not be fixed. > > However, if the routers are connected to the internet, it would also be > possible to use commercial VOIP apps (like WhatsApp, Hangouts, Skype). I am > not sure how they route voice traffic these days, but Skype used to allow > peer-to-peer, which like Hangouts/WhatsApp should mean "peer-to-peer when > possible". In any case, for an app that just "handshakes" via the internet, > and then can use peer-to-peer, only the connectivity between the routers > matters. A nice feature would be if the app told you what it's doing (p2p > or via server) so that you know whether you're safe on WiFi or killing the > internet connection... > > There is an app called FireChat, that apparently can do p2p off-internet. > It's proprietary, and I haven't looking into it much. However, it strikes > me that such an app would be really useful, especially server-less, with > the option to connect to a global network if available. > > Is there anybody who wants to form a little action group to investigate? > > Hope this helps! > Bjoern > > On 10 January 2018 at 23:58, john whelan <jwhelan0...@gmail.com> wrote: > >> The problem was mentioned some time ago in reference to a refugee camp in >> Europe. >> >> You need csip simple and to know the phone's ip address. IP checker is >> a simple free app that will how this. >> >> "Just install csip simple and create a profile called "user", not linked >> to any server. To call another person with the same setup, you just need to >> know his ip address. Once they have sent it via voice, email, sms or >> whatsapp or ever (much better) a safer way like textsecure, you simply type >> "user@15.14.173 et cetera (basically user@ other person's ip) and their >> Csipsimple will ring. It works and it's the purest form of Internet. " >> >> It doesn't have to be called user by the way. So John or Mabel will work >> fine. You do need the ip address so to call John it would be >> John@192.168.2.99 mabel@192.168.2.33 >> >> You do not need the router to be connected to the internet for this to >> work by the way. >> >> Cut and paste should work. So stick the wifi router up high and you >> should be able to cover a fair range. >> >> Cheerio John >> >> >> >> _______________________________________________ >> HOT mailing list >> HOT@openstreetmap.org >> https://lists.openstreetmap.org/listinfo/hot >> >> > > _______________________________________________ > HOT mailing list > HOT@openstreetmap.org > https://lists.openstreetmap.org/listinfo/hot > >
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