Craig's Walky Talky4.0 - Google Play

Supports a WIFI access point (or hotspot so you can use this app anywhere without a modem, farm, field, mountain!)

The non AP method (option 1)
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uses UDP and your lan, so even if your internet goes down, this will work providing you have wifi coverage, if you don't then this won't work either... (ie regular modem/wifi router)

how to use, simply click on the walky talky icon to talk to others in your home or business networks.

Float mic option allows you to play games, browse the net and still voice chat! Both ap and non ap support!

WIFI hotspot AP method (Option 2)
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Set up your AP put a password on it or or leave it open, up to you! (This is your custom wifi hotspot or Access Point)...

once the AP is configured

run the walky talky, then click on Enable Wifi AP, this will enable your AP (make sure mobile data is off)

With all your other devices / friends, simply look for your AP over wifi (on their device go to wifi - scan for new networks - select your custom AP! other devices, simply select that network!)

this then allows real walky talky access between users! At home or in the middle of a field. ..

Problem solving
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You can hear but not send or they can send but not hear?
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This is generally a socket error which was not handled well... i added a reset button which will cure any issues like that...

(If that fails, simply rerun the app or switch wifi off, and then back on)

Volume low?
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Simply turn it up via the volume buttons..

Can't hear or send? Still?
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Simply rebooting both devices, after 2 or 3 days of continual use the phone can have wifi problems and it can be down to Android, simply powering off then powering on again can resolve most serious problems with this app.