General > General Technical Chat
Do you think mobile phones will ever get proper peer to peer communication?
pdenisowski:
--- Quote from: janoc on March 24, 2024, 12:13:39 pm ---Back in the late 90s/early 2000s there were phones that had a "walkie-talkie" function (PTT - "Push to talk"), for this purpose. It is not strictly speaking "peer to peer" (radio talking directly to each other - it used GPRS over the GSM network and you still needed to have the service supported by the network) but from the user's point of view there was little difference.
--- End quote ---
In the United States, iDEN was very popular for a while but Sprint refarmed the spectrum to LTE sometime around 2012 (?) or so.
pdenisowski:
There are 3GPP standards for direct UE-to-UE communications ("sidelink")
https://www.comsoc.org/publications/ctn/who-needs-basestations-when-we-have-sidelinks
I'll have to check with my colleagues who specialize in mobile wireless to see if anyone is actually implementing this.
David Hess:
PDAs used to support IrDA for local point-to-point connections. Business persons could trade business cards using this. Or you could synchronize your PDA with your computer just by setting it down in front of it.
dobsonr741:
Voice calls are no longer cool. Or driving telco revenue. What remains is messaging over WiFi, and that is telco-less.
NiHaoMike:
They exist, but haven't caught on. The carriers not liking alternatives to their services is likely part of why.
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