@conference{greenvoip2010,
  title = "How Green is IP-Telephony?",
  author = "Salman A. Baset, Joshua Reich, Jan Janak, Pavel Kasparek, Vishal Misra, Dan Rubenstein, Henning Schulzrinne",
  year = "2010",
  month = "aug",
  booktitle = "Proceedings of SIGCOMM Green Networking Workshop",
}