About O2C
O2C for Android is the Othos Telecom softphone developed to allow their clients to make VoIP calls wherever they are, using their Androids.
Just need to install and create an Othos account to enjoy the advantages that our softphone offers to you.
You can make calls choosing among GSM to use your cellphone operator, SIP using your Othos account for VoIP calls or Sms2Call that allows you to make VoIP calls without Wifi or 3G.