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Conformity Assessment and Interoperability Developing Country point of view

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Conformity Assessment and Interoperability Developing Country point of view. Outline. VIETTEL Group Introduction Interoperability and Conformity Assessment Proposals. REMARKS AND MILESTONES. 1989: Founded under the name SIGELCO

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Conformity Assessment and Interoperability

Developing Country point of view



  • VIETTEL Group Introduction
  • Interoperability and Conformity Assessment
  • Proposals


  • 1989: Founded under the name SIGELCO
  • 1995: Becoming 2nd telecom enterprise to be fully license in Vietnam
  • 2001: The first Vietnam enterprise offers Voice over Internet Protocol (VoIP) nationwide and International VoIP service.
  • 2002: Offer Internet service.
  • 2003: Offer fixed (PSTN) service.
  • 2004: Offer mobile service, international optical link.
  • 2005: Offer IP VPN (MPLS) service.
  • 2006: Investment to oversea into Laos and Cambodia.
  • 2008: No.1 in number of mobile subs in Vietnam.
  • 2009: No.1 in telecom infrastructure in Vietnam, Laos and Cambodia.
  • 2010: No.1 on subscribers in all kind of services in Vietnam, Laos and Cambodia, launching mobile services in Haiti.














Turnover segments

Revenue and benefit (million US$)

  • Estimated that in the year 2010, Viettel shall achieve 6 Billion US$.
our achievement


  • The Emerging Market service Provider 2009 Asia Pacific ICT Award (Frost & Sullivan).
  • Top 30 GSM networks worldwide (Wireless Intelligence)
  • The world most valuable mobile Telecoms brands 2008 (Intangible Business)
  • The Best Operator in a Developing Market 2009 (WCA)

SUBSCRIBER BASE (end of 2009)

  • Vietnam (Viettel)
    • Mobile:40 Mio (No.1)
    • Fixed:2,5 Mio (No. 2)
    • Internet:400K (No 2)
  • Cambodia (Metfone)
    • Mobile:2 Mio (No.2)
    • Fixed:150K (No. 1)
    • Internet:15K (No 1)
  • Laos (Unitel)
    • Mobile:500K(No.2)
    • Fixed:40K(No. 1)
    • Internet:4K (No 2)

Interoperability and Conformity Assessment

  • Partial missing of vendor’s committed implemented functionalities affects general quality of services
    • No separate organization or office responsible to verify and assess the quality and functionality pre-declared by vendors
    • Telcos don’t have sufficient experience in verifying quality and capacity of the systems as well as a standard Test Lab to conduct the testing and conformity assessment of the equipment’s quality

Affect the quality of service delivered to customers


    • It was not possible to implement vendor H’s EMR function in V’s mobile wireless network.
    • In transmission network, vendor H’s SDH equipment Metro 100 lacks of LCAS function

Interoperability and Conformity Assessment (Cont)

  • Partial lack of interoperability between equipment of same or different manufacturers results in the impossibility to access to services
    • ITU recommendations and 3GPP specifications may have many optional features and parameters but vendors sometimes choose only some but not all those optional features and parameters

Incompatibility of equipments from different suppliers


    • For EoS service (Ethernet over SDH), equipments of many suppliers can not be configured inter-networking (in fact, in telco V’s case, equipments of supplier E, H, Z could not be inter-networking configured)

Interoperability and Conformity Assessment (Cont)

  • Need to apply unexpected procedures to obtain that functionalities work
    • lack of ITU recommendations to map in while the development of new end-user equipments and network equipments is getting more and more diversified

Telco has to look for another standard body or forum to refer to


    • For NGN network that provides VoIP and multimedia services, there are many types of end-user equipments such as ATA, HomeGateway and IP phones but it is not true that every terminal will be compatible with the existing NGN that Telco has already invested using equipments from one supplier

Interoperability and Conformity Assessment (Cont)

  • Equipment lack of conformity with standards
    • Most of equipments supplied by vendors to build the network are declared to be compliant to international standards but there are not concrete proofs or clear binding.

Mandatory and optional terms are applied in different way for each operator/telco or supplier. Optional features can affect connections and interoperability between equipments and quality of service.



  • ITU should open a channel to assist telcos to solve all mentioned problems.
  • Viet Nam call for ITU’s assistance and sponsoring for training and building a standard Lab for assessing and testing quality and capacity of telecom network equipments (not only terminal equipments) from suppliers.
  • ITU should help telcos and request vendors to cooperate with telcos in dealing with non-interoperability.
  • ITU would produce guidelines for developing countries in applying ITU recommendations and build our own national standard system for NGN/IP/3G in which specifications and parameters are chosen suitable with the conditions of Viet Nam as well as other countries in the region.
  • ITU should consider holding the workshop on the administrative role in conformity assessment including best practice and experience of developed countries in this issue.