Tuncalp, D. 2009. Mobile Virtual Network Operator Business Outlook: Barriers and Opportunities. Innovation Executive Forum, Marcus Evans, London.

Tuncalp, D. 2009. From MNO to MNVO: Shifting towards a service provider role in the Telecoms market. MVNO Industry Summit, Informa, Barcelona.

Tuncalp, D. 2009. Understanding the Benefits of the Mobile Virtual Network Operator Proposition to the Mobile Network Operators. Growth Markets, Informa, Dubai.

Tuncalp, D. 2009. Mobile Virtual Network Operator Business Outlook: Barriers and Opportunities for Potential MVNOs in Turkey. Eurasia.com World Series, Informa, Istanbul.

Tuncalp, D. 2008. Mobile Digital Signatures for the Public: Helping to Bridge the Digital Divide and Providing Ultimate Cyber-security for Every Online Transaction”, Internet Governance Forum, United Nations, Hyderabad, India.

Tuncalp, D. 2008. Mobile Virtual Network Operator Market Outlook in Turkey. MVNO Conference, Informa, Monaco.

Tuncalp, D. 2008. Success of Multipurpose Mobile Signature Services. Mobey Forum Conference, Oslo, Norway.

Tuncalp, D. 2008. How Mobile Signatures Provide Security and Trust”, Mobile and NFC Payment Strategies Conference, Budapest, Hungary.

Tuncalp, D. 2008. Marketing A SIM-Based Signature Solution To Provide Trust And Convenience For Financial Services”, Mobile Banking Conference, Vienna, Austria.

Tuncalp, D. 2008. Mobile Signature: SIM cards as Secure Signature Creation Devices”, Forum of European Supervisory Authorities for Electronic Signatures, Norway.

Tuncalp, D. 2008. Turkcell Mobile Signature Services enabling Mobile Banking in Turkey, Mobile Financial Services Summit, Singapore.

Tuncalp, D. 2008. Mobile Signature Services in Turkey, Mobile Signature Conference, Cyberjaya, Selangor, Malaysia.

Tuncalp, D. 2008. Best Practice Case Study: Turkcell Mobile Signature, Mobile Marketing Forum, Gemalto, Marseilles, France.

Tuncalp, D. 2008. Extending Mobile Transactions with new Business Models and Technologies, SIMposium, Berlin, Germany.

Tuncalp, D. 2007. Development of the market for mobile signature services in Turkey, CARTES 2007 Congress, Paris, France.

Tuncalp, D. 2007. Best Practice Case Study: Turkcell Mobile Signature, Mobile Marketing Forum, Gemalto, Marseilles, France.

Tuncalp, D. 2007. Superior Customer Experiences with Mobile Signature enabled Financial Services, Forrester’s Forum, Barcelona, Spain

Tuncalp, D. 2006. Information Security Management and Standards. Invited Seminar. Sabancı University, Faculty of Management, Istanbul, Turkey.

Tuncalp, D. 2006. Information Security Management, Processes, Standards and the Myth of ‘Best Practice’. European Telecommunications Resilience and Recovery Association,  4th Annual Conference, 1-2 June 2006, European Telecommunication Standards Institute, Nice, France.

Tuncalp, D. 2004. Studying Technology Adaptation in Organizations. Invited seminar. Middle East Technical University. Department of Industrial Engineering, Ankara, Turkey.

Tuncalp, D. 2002. Developing a Comprehensive Technology Understanding From a Multi-Paradigm Position.” OR & IE Doctoral Students Colloquium, YAD & EURO, Middle East Technical University. Department of Industrial Engineering, Ankara, Turkey.