Walkie Talkie P2P has been rebranded to DirectTalk. Version 2 is now available as a discounted app upgrade for current version 1 s, and includes many requested features. You'll receive a notification within the app if your device is compatible and eligible for upgrading to DirectTalk 2.
This legacy version update also fixes an issue where the app may fail to (re)establish new or previously-lost connections while in the background, and where the app occasionally display errors in situations where there's no real issue.