1. Assessing network readiness for IP telephony;Bearden,2002
2. Scalable network assessment for IP telephony;Karacali,2004
3. Voice over Internet Protocol (VoIP);Goode;Proceedings of the IEEE,2002
4. Voice over IP;Mehta;IEEE Potentials Magazine,2001
5. Towards Junking the PBX: deploying IP Telephony;Jiang,2001