App doesn’t need Wi-Fi or even cellular service

[DelJo63]

Yep, make calls even when there may be no service whatsoever -- it's called MeshTalk, and as the name hints, it lets you connect to other phones around you. There’s no need for Wi-Fi, Bluetooth, or cellular service to get the job done, and it works over distances of up to 3km (1.86 miles).

See the article for details.

 

[learninmypc]

I dont see a link in your post. Could this be it https://www.theverge.com/2019/6/26/18759389/oppo-meshtalk-communications-protocol-no-internet-access

 

[DelJo63]

Yep, that's it -- the link apparently didn't insert correctly -- now it's corrected. Thanks again.

 

[learninmypc]

Youre welcome

 

[DelJo63]

There's a good explanation @ technologyreview.com

The app MeshMe:

MeshMe uses what’s known as mesh networking: it treats each smartphone running the app as a router, passing data from one handset to the next to get messages to recipients via the most efficient pathway.

MeshMe lets you talk with anyone, as long as a message can reach them via other MeshMe users. It can find contacts by combing your phone’s address book or your Facebook profile.

{ all nearby MeshMe users participate: a-->b-->c--> ...}

Schwach says the distance over which MeshMe will work varies according to the amount of wireless signal interference in the area (which increases if there are more phone-toting people around). The iPhone 6 should be able to transfer data via MeshMe at a distance of about 20 to 30 meters using Wi-Fi. Over Bluetooth, it’s more like 10 to 15 meters.

{so range is limited to the distance available at the last connection}
​

 

[DelJo63]

Notice the short range: 30 meters (aka 60 ft) at best. You're not going cross-country with this; maybe useful at a county fair or at the mall.