Cheapest VoIP for Calling to Cameroon Landphone and Mobile

At this monent the Cheapest VoIP  for Calling to Cameroon Landphone and Mobile:
http://www.voipjumper.com/
Rate -0.13 USD/min to mobile & 0.09 USD/min to Landline, No connection fee. You can use it from your mobile as well as from your computer.