WiFi Telsiz is a free Android app developed by FAITH, which offers a push-to-talk voice service for users on the same Wi-Fi network. The app allows users to communicate with each other without using the internet. The app includes features such as Crypto Support, Broadcast to All Devices, Multicast, and Single Release. Additionally, the app offers a Baby Monitor feature that allows users to use the app as a baby monitor. By switching the Sound Mode to Baby Monitor mode, users can place the phone next to their baby and listen to them from another phone connected to the same Wi-Fi network.

Overall, WiFi Telsiz is a useful app for those who need to communicate with others on the same Wi-Fi network without using the internet. The app's Baby Monitor feature is a nice addition, making it a versatile tool for families with young children. The app is easy to use and navigate, with a simple interface that makes it accessible to all users.