Abstract: Now a days, communication technologies that support organizational communication have became commonly more used than in the past, the question of what is their perceived richness between tradition and modern communication. This study aims to examine the most used communication channels among seven communication channels namely: face-to-face, addressed document, mobile telephone, fixed line telephone, SMS, e-mails and Facebook based on role understanding competency. The findings revealed that most used communication channel was e-mail followed by addressed documents, face-to-face, land line telephone, mobile telephone, SMS and Facebook. The results also showed that there is a negative relationship between the role understanding competency and the level of effectiveness of communication channels.