Zoiper is a VoIP softphone that lets you make chat or make voice and video calls with your friends, family, colleagues and business partners.
Unlike other software like Skype or Viber, it is open and can be used with any VoIP provider or PBX. Allowing for much more flexibility and cheaper or better quality termination.
To use Zoiper you will need:
You will need a PBX (could be hosted). This could be any SIP compatible provider or server. Some examples are (in alfabetical order)
Software to be installed on your location:
You will need a sip proxy We can recommend these solutions (in alfabetical order)