Evaluating Performance Characteristics of SIP over IPv6. - Thomas Hoeher; Martin Petraschek; Slobodanka Tomic; Michael Hirschbichler (J. Networks, 2007)

Generic access network emulation for NGN testbeds. - Joachim Fabini; Peter Reichl; Christoph Egger 002; Marco Happenhofer; Michael Hirschbichler; Lukas Wallentin (TRIDENTCOM, 2008)

Using E-Mail SPAM DNS Blacklists for Qualifying the SPAM-over-Internet-Telephony Probability of a SIP Call. - Michael Hirschbichler; Christoph Egger 002; Othmar Pasteka; Andreas Berger (ICDS, 2009)

IMS security and what we should learn from the Internet. - Oliver Jung; Andreas Berger; Michael Hirschbichler; Ivan Gojmerac; Hans Lippitsch; Mario Tscherwenka; Klaus Umschaden (Elektrotech. Informationstechnik, 2010)

A study of SIP proxy load patterns. - Christoph Egger 002; Marco Happenhofer; Michael Hirschbichler (M&N, 2011)

An Architectural and Evaluative Review of Implicit and Explicit SIP Overload Handling. - Marco Happenhofer; Joachim Fabini; Christoph Egger 002; Michael Hirschbichler (Int. J. Meas. Technol. Instrum. Eng., 2011)

Stop the Flood - Perimeter Security- and Overload- Pre-evaluation in Carrier Grade VoIP Infrastructures. - Michael Hirschbichler; Joachim Fabini; Bernhard Seifert; Christoph Egger 002 (NEW2AN, 2012)

Mobile SIP: An Empirical Study on SIP Retransmission Timers in HSPA 3G Networks. - Joachim Fabini; Michael Hirschbichler; Jiri Kuthan; Werner Wiedermann (EUNICE, 2013)

Representative Delay Measurements (RDM): Facing the Challenge of Modern Networks. - Joachim Fabini; Tanja Zseby; Michael Hirschbichler (VALUETOOLS, 2014)