LanCaller

This is a free voice call app specially designed for locomotives
Allow the front and back seats to chat and talk to your heart's content

LanCaller advantages:
★No need to go through the Internet
Just turn on the "Internet hotspot" of your phone, and let your friends connect to the hotspot via Wifi, and you can start a call

★Ignore the terrain
Whether you are in a mountain, tunnel or any place with poor network signal, you can make a smooth call

★Ultra-low voice delay
Since there is no need to go through the cloud server, there will be ultra-low voice delay, and the audio will be picked up almost immediately

★Super simple operation steps
Only need three steps to start a call
Just turn on the "hotspot" and connect with friends via Wifi
After selecting the channel, one person presses to create a room, the other person enters the room number and presses connect to complete the connection
Connecters can also use Qrcode to scan, automatically bring in the channel and room number
Voice calls can be made even if mobile data is not turned on