The NGMN Alliance is constituted through NGMN Ltd. with registered office in Reading, United Kingdom. NGMN Ltd. is represented and managed by a board of directors (Board). The current Board Members and their Alternates are presented below.

Board Members

Bruno Jacobfeuerborn

Chairman of the NGMN Alliance

Director of Technology Telekom Deutschland GmbH
and Chief Technology Officer (CTO) of Deutsche Telekom AG

Bruno Jacobfeuerborn has been Director of Technology at Telekom Deutschland GmbH since April 2010. In addition, he is Chief Technology Officer (CTO) of Deutsche Telekom AG, a position he has been holding since February 2012.


Since 1989, Bruno Jacobfeuerborn has held various managing positions at Deutsche Telekom AG. From 2002 to 2007, Bruno Jacobfeuerborn was a member of the management team in his capacity as Managing Director of Technology, IT, Procurement and, until 2004, Customer Service at T-Mobile Netherlands in The Hague. At the same time, he headed the International Service Management unit at T-Mobile International. Subsequently, he was a member of the management team and Managing Director of Technology, IT and Procurement at Polska Telefonia Cyfrowa in Warsaw until June 30, 2009. Since July 1, 2009, Bruno Jacobfeuerborn has been responsible for Technology (both mobile and fixed network) in Germany.

Paul Berriman

Group CTO, PCCW & HKT Group

Mr. Paul BERRIMAN is the Group Chief Technology Officer of PCCW-HKT, a position which he has held since May 2007, having joined PCCW in 2002. Mr. Berriman is primarily responsible for leading the Group's product and technology roadmap and strategic development.

Mr. Berriman has over 30 years of experience in telecommunications, media and convergence and in 2009 was recognised by the IPTV World Forum with their Special Merit Award for Outstanding Industry Contribution. In 2008 he was also listed as one of the Global Telecoms Business Magazine's top 100 "most influential persons in telecoms".

Prior to joining PCCW in 2002, Mr. Berriman was the Managing Director of Arthur D. Little in Hong Kong, and was involved in telecommunications consultancy projects globally. Previously he also held executive management roles in Hong Kong Telecom, New World Telephone and Reuters.

Mr. Berriman graduated BSc from the University of Salford and an MBA from the University of Hong Kong. He is a Chartered Engineer and has previously held positions as a member Advisory Boards for Intel and Juniper Networks. He has also been a member of OFCA's (Hong Kong’s Regulator) Technical Standards Advisory Committee.

He is a Steering Committee member of the Global TD-LTE Initiative (GTI) and chairs the 3.5GHz TD-LTE Working Group within GTI.

He is also an independent non-executive director of Spark New Zealand (formerly known as Telecom Corporation of New Zealand) having joined the Board in December 2011.

Enrique Blanco Nadales

Global CTO, Telefonica S.A.

Enrique Blanco joined Telefónica 26 years ago and has mainly developed his professional career in Telefónica de España, S.A.U.He currently serves as Global Chief Technology Officer (GCTO) of Telefónica S.A, within the Global Resources Division.He has a degree in Physics from the University Complutense of Madrid and, later on, became PhD in Physics. He holds a Master Degree in Management (PDG) from IESE Business School (University of Navarra) and received a Master Degree in Technology from the EOI.He has held several management positions within Telefónica, including responsibilities in Telefónica International, focused on Networks and Platforms. After that, he returns to Telefónica de España, S.A.U. and joined the Direction of Operations, where he performed several Director Positions linked to the development and management Systems, Company Partners, national local Networks, and, finally, he was appointed Director of Operations and Engineering, with a team of about 18.000 employees.Mr. Blanco is a member of several Boards of Directors of Telefónica Group Companies fully or partially owned by Telefónica.

Jin Sung Choi

CTO, EVP and Head of Corporate R&D Division, SK Telecom

Dr. Alex Jinsung Choi is serving as the CTO, EVP and Head of Corporate R&D Division. Dr. Choi joined SK Telecom in 2012 as the Executive Vice President and Head of Technology Strategy Office. He is responsible for building the company’s technology roadmaps and strategies, aimed at securing technology leadership in the rapidly evolving mobile marketplace. In line with the company’s efforts to open a new LTE 2.0 era, his focus is currently on developing next generation network technologies including LTE and LTE-A.

Choi has over 20 years of experience in the mobile telecommunications industry. Before joining SK Telecom, he held various key positions at LG Electronics including EVP & Head of Mobile Communications Business Unit, EVP & Head of Mobile Core Technology Lab and SVP & Head of Next-Generation Telecommunications Lab. Choi is credited with developing the world’s first LTE handset modem chip and launching LG’s first Android smartphone. He has also actively participated in global standardization activities through 3GPP, NGMN, OMA and ITU.

He received his Bachelor's degree in Control and Instrumentation Engineering from Seoul National University; and Master's Degree in Computer Engineering and Doctor’s degree in Electrical Engineering from University of Southern California.

Sandro Dionisi

Director of Global Advisory Services, Telecom Italia

Sandro Dionisi graduated cum laude in Electronic Engineering at the University of Rome "La Sapienza". Sandro Dionisi has over 25 years of experience in various telecommunication fields. He started working for Telecom Italia (previously SIP) in 1983, where he has been involved in several network divisions covering different levels of responsibilities. In 1999 he was nominated head of Fixed Access and Transport Network and in 2002 he was responsible for the Regional Network Territory in Italy. In 2003 Sandro was in charge of coordinating the international network infrastructures and operations of Telecom Italia for both fixed and mobile services, including Europe and Latin America. Sandro Dionisi has been an active member of several international fora and standardization bodies within ITU and ETSI. In February 2008 he was appointed Director of Telecom Italia Lab where he is in charge of research, innovation and engineering for both fixed and mobile networks within the Telecom Italia Group.

Ibrahim Gedeon

Chief Technology Officer, TELUS

Dr. Ibrahim Gedeon is responsible for technology strategy, service and network architecture, service delivery and operational support systems, as well as service and network convergence, enterprise applications and network infrastructure strategies and evolution. Under his leadership TELUS deployed the largest LTE cellular network to Canadians to meet the exponential data traffic growth, offering faster speeds to more than two-thirds of Canadians. Combined with 97% HSPA+ coverage, the TELUS wireless broadband network is one of the best in the world. In Q4 of 2012, TELUS successfully rolled out co-channel LTE small cells, bringing technology innovation to the next level. Ibrahim was recently the General Chair for the 2012 IEEE International Conference on Communications in Ottawa and also serves on the board of a number of industry associations, including the Washington, DC based Alliance for Telecommunications Industry Solutions (ATIS), the Canadian ICT Advisory Board, Department of Foreign Affairs and International Trade, and the University of Southern California’s Marshall School of Business based Institute for Communication Technology Management (CTM). A native of Lebanon, he has a Bachelor's degree in electrical engineering from the American University of Beirut and a Masters' in Electronics Engineering from Carleton University. In 2010, he received a Honourary Doctor of Laws degree from the University of British Columbia.

Jacob Groote

Vice President Mobile Operations, KPN

After obtaining his PhD in Physics in 1990 Jacob joined KPN to take a leading role in the R&D on using artificial intelligence in a telecoms environment. Since then Jacob has held senior management positions in almost all of KPN’s business units, including CIO and Manager IT projects in the Fixed Networks division, General Manager Operations in the Business Market division and Director Process and System Development in the Carriers Services division. Since 2012 Jacob serves as Vice President Mobile Operations and is responsible for the development, roll-out and operations of KPNs mobile network in The Netherlands.

Armin Hüwels

VP Wireless Technologies, Liberty Global

Armin is VP Wireless within Liberty Global since 2011 overseeing Liberty Global’s full MVNO initiatives in various countries. Under his responsibility Liberty Global deployed a centralized Pan-European multi country and multi tenant mobile core network which is serving up to now 4 commercially live countries with full MVNO network capabilities. As of 2015 Armin is also overseeing the radio rollout Armin has more than 20 years experience in mobile. Previous to Liberty Global Armin was CTO of German full MVNO vistream and held various management positions within E-Plus Germany.

Michael S. Irizarry

EVP and CTO, US Cellular

Michael joined US Cellular in 2002, overseeing the company’s information systems and technology, as well as technological operations including wireless towers, network build-outs for new markets, network operations, and technological advancements. He also leads US Cellular’s information systems, strategic operations program, and enterprise program management teams. These teams focus on application development, data warehousing, wireless billing technologies, and support for data centres and end users. Prior to joining US Cellular, Irizarry held executive positions with Verizon, Bell Atlantic Mobile, Paging Network, Inc., and Motorola. He is a senior member of the Association for Computing Machinery as well as the IEEE and its communications and computer societies. Irizarry earned a bachelor’s degree in engineering from Cleveland Technical College, a master’s degree in information management and an MBA from the International School of Information Management, and a doctorate in communications technology from Capella University’s School of Business and Technology. He is also a graduate of the University of Chicago’s executive management program.

Tom Keathley

SVP Network & Product Planning, A&T Services, Inc.

Tom Keathley is responsible for planning the evolution of the AT&T U-verse product, mobility core, radio access roadmap, wireless device requirements and certification, and the technical solutions for AT&T’s products and services.  He and his team also lead the architecture development for access technologies and mobility core, as well as the implementation and expansion of the 4G LTE network.

Previously, he was Vice President - Service Realization where he was responsible for the delivery of the video architecture and platform supporting the evolution of the UVerse service.  He was also responsible for the design and delivery of the mobility packet core as well as the transition of that platform to the User Defined Network Cloud.

Tom has 29 years of experience in the telecommunications industry and served in a number of leadership roles in AT&T, Cingular, Southwestern Bell Mobile Systems, Cellular One and Southwestern Bell Telephone.

Adam Koeppe

VP of Access Technology Planning, Verizon

Adam is responsible for the infrastructure roadmap for all elements of the Verizon Wireless radio access network, enhanced packet core, and IMS core, and the Verizon customer-facing FiOS infrastructure. Additionally, his team is tasked with charting the path to future spectrum acquisitions, developing next-generation industry standards, and defining how future technology concepts, like 5G, NGPON2, and virtualized networks can become implementation realities for Verizon.

LI Zhengmao

Executive Vice President,
China Mobile Communications Corporation

Li Zhengmao is Executive Vice President of China Mobile Communications Corporation. He was appointed to the position in May 2008 and currently assists the President in relation to technology, R&D, security, overseas investment issues and management of China Mobile Charity Foundation, etc.
From 1994 onwards, Mr. Li held several positions in China United Telecommunications Corporation (“former China Unicom”) as Deputy General Manager of Network Technology, General Manager of Wireless Communications, General Manager of Technology and Deputy Chief Engineer. Mr. Li was appointed Executive Director and Vice President of China United Telecommunications Limited in April 2000, and General Manager of the Yunnan Branch of former China Unicom in May 2002. In December 2003, he was appointed Vice President of former China Unicom and assisted the President in relation to value-added services, data and fixed-line value-added services, international business, etc.

Kuo-feng Lin

President of Mobile Business Group, Chunghwa Telecom

Mr. Kuo-­‐feng Lin currently serves as the President of Mobile Business Group at Chunghwa Telecom Co., Ltd. He previously served as the Vice President of Mobile Business Group from October 2009 to May 2012, and as the Manager of Taipei Branch, Mobile Business Group from April 2006 to October 2009. Mr. Lin graduated from the Taipei Institute of Technology and majored at Electronic Engineering. After a lengthy career within the Mobile Business Group, he is now responsible for the formulation, strategy and promotion of Chunghwa Telecom’s mobile communication business. Chunghwa Telecom has always fulfilled the role of telecommunication innovation and leadership within Taiwan, and through his experience and strong leadership, Chunghwa Telecom was the first to launch a commercial LTE network in Taiwan on May 29, 2014, bringing Taiwan into a new generation of high speed mobile communications.

Yogesh Malik

Group Chief Technology Officer (CTO), VimpelCom Ltd.

Yogesh Malik is Group Chief Technology Officer of VimpelCom Ltd. since March, 07th 2014. He has been the Chief Executive Officer of Uninor; a company majority owned by the Norway based telecom operator - Telenor Group.

Prior to this, Yogesh has served as Uninor’s Chief Operating Officer for over 2.5 years, having joined the organization in November 2010.

Yogesh has over 20 years of experience in the telecom sector, including his tenure with Telenor Group’s most dynamic markets like Bangladesh, Czech Republic and Norway. Before joining Uninor, Yogesh has served as the Head of Technology and Sourcing in Telenor Group Corporate Development. He has also served as Chief Technology Officer of Kyivstar in Ukraine and Chief Technology Officer of Grameenphone in Bangladesh. In addition to his career with the Telenor Group, Yogesh has also worked with AT&T, Tata and Ericsson in India and for the international mobile operator TIW (today known as Vodafone) in Canada, China, Brazil and the Czech Republic. This experience gives him expertise in both operator and vendor environments.

Yogesh holds an Engineering Degree in Electronics from MSU University, Baroda and is an Executive MBA post-graduate from IMD, Lausanne, Switzerland.

Alain Maloberti

Senior Vice President, Orange Labs Networks

Alain Maloberti graduated from Ecole Polytechnique (Paris, 1977) and from Ecole Nationale Supérieure des Télécommunications (Télécom Paris, 1979). He joined France Telecom in 1979, and has been involved since 1983 on studies and development of digital cellular networks, notably as chairman of the technical committee SMG2 of ETSI (definition of the radio aspects of the GSM system) from 1985 to 1995. He was Director of the Technical Development of the France Telecom mobile network in France from 1994 to 2003, when he became, at the corporate level of the Orange Group (mobile subsidiary of the France Telecom Group), in charge of the development of networks. In 2006, mobile and fixed operations of the FT Group where merged both at national and corporate level, and Alain Maloberti is currently Senior VP, network architecture and design, for fixed, broadband and mobile networks of Orange.

Seong-Mok Oh

SEVP and Head of Network Group, KT Corporation

Mr. Seong-Mok Oh is Senior Executive Vice President and the Head of Network Group at KT Corporation. He has over 25 years of seasoned experiences in the telecommunication field, covering practically all aspects of KT’s wireless network, with a specific focus on the network design. His major responsibilities include the provisioning of the company’s best-in-class broadband network, incorporating both wire-line and wireless infrastructure.

Under his leadership, KT was able to successfully commercialize the most innovative technologies such as LTE Advanced tri-band carrier aggregation for the first-time in the world. KT’s relentless efforts to make the cutting-edge technologies quickly available for the end-users result in two prestigious accolades in MWC 2014, ‘Outstanding LTE Contribution’, and ‘Outstanding Overall Mobile Technology.’

Prior to his current position, as the Head of Mobile Network Business Unit, he played a crucial role in the world-first commercial deployment of centralized radio access network (C-RAN) architecture for 3G and LTE network. It was recognized as “The Most Significant Development for Commercial LTE Network by an Operator” in LTE Award 2012.

He serves as the board member in a number of domestic and international industry organizations. Since 2012, he is a member of the Steering Committee for Global TD-LTE Initiative. Also, in 2014, he was appointed as a Director on ‘5G Strategy Promotion Committee’ that supervises all relevant 5G-related activities led by Korean Government. He holds a Ph.D. degree in Electronics Engineering.

Seizo Onoe

CTO, EVP and Member of Board of Directors, NTT DOCOMO


Seizo Onoe was named Chief Technology Officer and Executive Vice President and a Member of the Board of Directors in June 2012. Mr. Onoe became a Senior Vice President and General Manager of the R&D Strategy Department in June 2008. He was a Vice President and took positions as General Manager of the Radio Access Network related development departments from July 2002 to June 2008. 

He has been responsible for leading initiatives in the research and development of the analog cellular system, the digital cellular system, W-CDMA/ HSPA, LTE, LTE-Advanced and 5G. He is working on the research and development of radio access networks, core networks, consumer devices and cloud services. He has worked for NTT and NTT DOCOMO since 1982, acquiring more than 30 years of experience. Mr. Onoe has a master’s degree in electronics from the Kyoto University Graduate School of Engineering.



Günther Ottendorfer

Chief Operating Officer, Technology, Sprint

Günther Ottendorfer was named Technical Chief Operating Officer at Sprint in August 2015. He is responsible for overseeing the company’s network, technology and IT organizations, including related strategy, network operations and performance, as well as partnerships with network, technology and IT vendors.

Günther started his international career in the telecommunication sector over 20 years ago. In 1996 he became a founding member of mobile operator, max.mobil, in Austria. He gained considerable management experience as Chief Operating Officer (COO) and Chief Technology Officer (CTO) for T-Mobile Austria, as CTO for T-Mobile Germany and as European Technology Director at Group level for T-Mobile International. In 2011 Günther became Managing Director -- Networks at Optus Singtel, Australia’s second largest telecommunications provider with over 11 million customers in cable, fixed, mobile and satellite Networks. In addition, he spearheaded the nationwide introduction of LTE and TD-LTE which Optus pioneered as one of the first providers globally. In 2013, he joined Telekom Austria Group as Group CTIO driving major wireless expansion, convergence and network function virtualization projects across the countries of the group.

Günther studied computer science at the Technical University of Vienna while working in parallel as a software developer for GSM.

Bruce Rodin

Vice President Wireless Technology, Bell Canada Enterprises

Mr. Bruce Rodin is currently Vice President Wireless Technology at Bell Mobility, the wholly owned wireless division of Bell Canada. In this role, he is responsible for the development of all new wireless technologies at Bell including the establishment of strategic direction relating to spectrum acquisition, network planning and development towards LTE / SAE and beyond, services, terminal / product planning and development and the management of all Bell wireless laboratories. Mr. Rodin received a Bachelor of Science degree in Electrical Engineering from Queen's University at Kingston in 1980, is a member of the Professional Engineers of Ontario and IEEE. Mr. Rodin joined Bell Mobility in 1988 and has held numerous positions with-in the strategy, development and engineering teams.

Rene Schiefer

Director Access & Transport, Telekom Austria Group

Rene Schiefer began his professional career in 2000, after graduating from the School for Telecommunication Engineering in Graz. His first position was as a Senior Network Optimisation Engineer at former mobilkom Austria AG. In 2007, Schiefer moved to the Macedonian subsidiary Vip operator where he was responsible for network planning & optimization as Head of Access Network and Head of IT & Core Service Network and assisted in establishing and growing the network from scratch.
In 2009, he moved to the Serbian Vip mobile where he was responsible again in assisting with the start-up of the network infrastructure as Greenfield Operator. Under his direction, Vip mobile received the Connect Magazine Award for the ‘Best Mobile Voice and Data Network’ in the Republic of Serbia. In 2012, Schiefer moved back to Austria as the Group wide Vendor Manager for Access & Transport for the Telekom Austria Group and became Director of this department in 2013.
Rene Schiefer has extensive experience in the field of Access & Transport, Network Planning & Optimization, Strategy Development and Network Operation.

Gediz Sezgin

SVP Network Technologies, Turkcell

Gediz Sezgin was appointed Senior Vice President of Network Technologies as of September 1, 2015. Previously, he was Senior Vice President of ICT, Chief Information and Communication Technologies Officer, Director of Application Operations, Director of Service Network under the ICT Function and held various executive positions in the Technology Function. Gediz Sezgin joined Turkcell as Network Engineer in 1995. He started his professional life at Alcatel Teletaş in 1991. Mr. Sezgin was graduated from Istanbul Technical University in Electronics and Communication Engineering and received his Master’s degree from the same university.

Ameet Shah

Group Strategy Director, BT plc.

Ameet is responsible for BT’s network strategy, including spectrum, fibre and the evolution of core networks. He led the re-entry of BT into mobile and plays a leading role in the planning and delivery of BT’s 4G wireless interests. He joined BT in 2012. His career prior to BT includes consulting, where he was Head of the Telecoms Strategy Practice of Accenture in London, Ericsson, and the GSM Association. He brings over 20 years of experience in wireless communications since graduating from Gonville & Caius College, University of Cambridge in 1985 and the Wharton School of Business, University of Pennsylvania in 1989.

Douglas Smith

Chairman and CEO, Ligado

As chairman of the board and chief executive officer of LightSquared, Doug Smith is responsible for the deployment and operation of the first-ever nationwide 4G-LTE network to combine satellite and terrestrial technology. He initially joined LightSquared in 2010 as the company’s chief network officer.

With more than 20 years of domestic and international telecom and wireless industry experience, Doug has engineered, built and launched nationwide networks for industry corporations including GTE, Nextel, Sprint Nextel and Clearwire.

From the outset of the commercial cellular industry, Doug has been involved with the development and technical support of several nationwide cellular networks including leading the team that was responsible for the design, deployment and operation of the United States’ first mobile broadband WiMAX network for Sprint. Joining Nextel when it was a start-up company, Doug was involved in building the business from the ground up. He was responsible for the design and operation of Nextel’s nationwide network which consisted of more than 20,000 cells and served more than 20 million subscribers. Following that network deployment, he served as Sprint’s senior vice president and chief technical operations officer and embarked on the deployment of the company’s 4G network.

Niklas Sonkin

EVP, Tele2

Niklas currently holds the position as Executive Vice President and Market Area Director for Central Europe & Eurasia at Tele2. He is the Chairman of the Supervisory Board of MT-S in Kazakhstan. Niklas has a strong industrial background from his earlier roles as Chief Strategy Officer and Director of Business to Business, Product Development and Management at Wataniya Telecom. Niklas has also held senior positions at TeliaSonera AB, Sonera Corporation, and Telecom Finland.

Mats Svärdh

VP, Head of Group Networks and IT Infrastructure, Telia Company

Mats Svärdh serves as VP, Head of Group Networks and IT Infrastructure of Telia Company. He is responsible for fixed and mobile networks as well as for IT infrastructure in the Telia Company group, reporting to the group CTO.

Tay Soo Meng

Group CTO, SingTel

Mr. Tay is the Group Chief Technology Officer of Singapore Telecommunications Limited (SingTel) since September 2012, a company comprising of interests in Singapore, Australia (Optus), India (Bharti), Africa (Bharti), Philippines (Globe), Thailand (AIS) and Indonesia (Telkomsel). He is responsible for the Networks strategy, procurement, planning and operations across the Group and the technical development in our associate companies. Prior to this, Mr Tay was the Managing Director, for Optus Networks from 2008 and returns to Singapore as Managing Director, Networks from 2010. Mr Tay has supported many of SingTel’s interest across Europe, Mauritius, Norway, Sri Lanka, and Vietnam assisting in the divestment of these operations to focus SingTel in becoming Asia’s leading operator. He was the GSM Association’s Asia Pacific Chairman in 1997, and was responsible for looking after the interests of GSM operators in the Asia Pacific region. Mr. Tay holds an MBA degree from the University of Leicester (England). Tay Soo Meng's contribution and achievements SingTel Networks has been pioneering LTE development in the highly dense environment of Singapore, leading the first In-Building distributed MIMO antenna system to achieve 150Mbps, as a key instrument to the small cell community. Optus has been at the forefront of the TD-LTE developments as a member of the GTI focused on developing interoperability between FDD & TDD. Whilst developing the virtualised ecosystem for LTE EPC.

Johan Wibergh

Group CTO, Vodafone

Johan manages technology resources including talent development and diversity agenda and also manages the companies offshore IT shared service centre. He is responsible for all technology strategy and operations worldwide for Networks and IT, Consumer and Enterprise Product Development. He also manages the companies Research & Development capabilities including standards bodies and intellectual property. Johan is responsible for Technology Security and Customer Data Protection Strategy.

In addition Johan is responsible in his current position for all senior supplier /partner technology relationships at CEO/Senior Manager level.

Peter Meissner

Chief Executive Officer, NGMN Ltd.

Dr. Meissner has over 30 years of experience in various telecommunication fields including more than 15 years of general management responsibilities with operators of mobile communication networks. In addition, he has extensive experience in research, technology strategy and management, emerging technology assessment, innovation transfer, and organization development. From 2000 until 2006, Dr. Meissner held positions as a senior executive in Orange. He started as Chief Technical Officer with Orange Communications SA, Switzerland, and finally was responsible for Quality and Performance as Corporate Vice President with Orange SA, Paris. Prior to joining Orange, he was more than 7 years with E-Plus Mobilfunk GmbH as General Manager, Systems Engineering. Since July 2006, Dr. Meissner has been running his own company as an independent business consultant, focusing on innovation, strategy, and organization development in key areas of the telecommunications industry. One of his appointments is supporting the world's leading operators and manufacturers as Chief Executive Officer of the Next Generation Mobile Network (NGMN) Alliance. Dr. Meissner holds degrees in Telecommunications from the Technical College of Lübeck and University of Hannover.