A study of fair usage policy effects on VoIP quality from social networking applications

This paper presents a study of VoIP quality from social networking applications over 3G with Fair Usage Policy (FUP) using stationary tests. It has been found that VoIP quality over 3G with FUP from the same VoIP applications tend to provide lower VoIP quality than over 3G with Access Unlimited Internet Service (AUIS), particularly Skype provides lower VoIP quality obviously. Also it has been found that over 3G with FUP provided by one operator, LINE tends to provide better VoIP quality than Skype and Tango although there is no significant difference (p-value > 0.05), while OOVOO provides the lowest VoIP quality.