Hello Mizutech
Congratulation for your android softphone! It is the best voip client for android. I am saying this after already used all others including csipsimple, bria, acrobit and more.
I am running a VoIP company in Brasil. Can you provide custom build? I just need to preset our server setting and add our name and logo, so i can submit the app under our company name to Google Play.
Waiting for your answer