15.5 legacy app

Aplicativo para servidor do sistema de telefone 3CX, versão 15.5. Será descontinuado no início de 2020

Use only if you are unable to update 3CX Server to Version 16

For use with Version 15.5 only

Can work on Android 6,7,8

Will have problems on Android 9

Does not work on Android 10

The proper app you should use is this:

https://play.google.com/store/apps/details?id=com.tcx.sipphone14