The liberalization of Bangladesh’s telecommunications sector began with small steps in 1989 with the issuance of a licence to a private operator for the provision of inter alia cellular mobile services to compete with the previous monopoly provider of telecommunications services the Bangladesh Telegraph and Telephone Board (BTTB). Significant changes in the number of fixed and mobile services deployed in Bangladesh occurred in the late 1990s and the number of services in operation have subsequently grown exponentially in the past five years.
The incentives both from government and public sectors have helped to grow this sector.It is now one of the biggest sector of Bangladesh. As a populous country, it's huge market has attracted many foreign investors to invest in this sector.
Landmarks in the history of telecom industry in Bangladesh
• 1853 : Telegraph branch under Posts and Telegraph ...view middle of the document...
• 1989 : Bangladesh Rural Telecom Authority got license to operate exchanges in 200 upazilla.
• 1989 : Sheba Telecom got license to operate exchange is 199 upazilla.
• 1989 : Cellular mobile phone company Pacific Bangladesh Telephone Limited and Bangladesh Telecom got license.
• 1995 : Card Telephone service introduced in Bangladesh by BTTB and TSS.
• 1995 : Regulatory power of BTTB transferred to Ministry (MoPT).
• 1995 : 2nd and 3rd ITX installed in Dhaka.
• 1996 : GrameenPhone got cellular mobile Telephone license.
• 1996 : Telecom Malaysia International Bangladesh got cellular mobile license.
• 1998 : Telecom Policy.
• 2000 : Global Telecom Service (GTS) Telex Exchange venture with British Teleco.
• 2001 : Telecommunication Act, to establish Bangladesh Telecommunication Regulatory Commission (BTRC).
• 2002 : ICT Policy.
• 2004 : Teletalk cellular mobile launched.
• 2005 : Egypt-based Orascom acquired Sheba Telecom
• 2006 : NGN introduced in BTTB.
• 2008 : BTTB converted into Bangladesh Telecommunications Company Limited (BTCL) with 100% shares owned by Government.
• 2008 : Japanese NTT DoCoMo bought 30 percent stake in Aktel
• 2009 : Bharti Airtel acquired 70 percent stake in Warid Telecom
• 2009 : Internet Protocol Telephony Service Provider (IPTSP) Operators launched.
Bangladesh Telecom Network Topology
As defined in the National Telecommunications Policy 1998 and International Long Distance Telecommunications Services (ILDTS) Policy 2007, all mobile operators is to interconnect through Interconnection Exchange (ICX) and all international calls to be handled by International Gateway (IGW) which is to be connected to the mobile and fixed operators through the ICXs.
The Interconnection Exchange (ICX) will receive all calls from the mobile and fixed operators whenever the call is made to other network and will pass it to the destination network if the call is local, and will pass to the IGWs if the call is international. ICX will also deliver calls received from IGWs where the call is destined.
Below illustrate the structure of interconnection between different interfaces.