ABB -Sip Softphone -VoIP Calls

Simple and User-Friendly Sip Phone. You Need to use Your own provider account to make calls using this App.
Features-
- Calling over wifi and mobile network.
- Supports the sending of DTMF.
- High performances.
-Crystal Clear Quality Voice even on a slow network.
-Background to always receive Calls.
-Multiple Codecs to support different network speeds.
-Modern user interface.