Documents 13/09/2004 Voice over IP/ IP Telephony Erwin Manshoven VoIP / IPTelephony.

Dia 1 13/09/2004 Voice over IP/ IP Telephony Erwin Manshoven VoIP / IPTelephony Dia 2 13/09/2004 Voice over IP/ IP Telephony Erwin Manshoven Wie gebruikt vandaag IP TEL …