BTTB is a PSTN service Provider in public BTTB is a PSTN service Provider in public sector. sector. BTTB also provides data services and BTTB also provides data services and leasing out transmission Media of Private leasing out transmission Media of Private Operator engaged in providing Mobile Operator engaged in providing Mobile telephone services and PSTN Services. telephone services and PSTN Services.
Present Transmission scenario of Bangladesh Present Transmission scenario of Bangladesh 1. 1. Microwave Backbone Microwave Backbone - Dhaka Dhaka – – Sylhet Sylhet link link SDH Radio - SDH Radio - Dhaka Dhaka – – Mymensing Mymensing link link PDH Radio - PDH Radio - Dhaka Dhaka – – Bogra Bogra link link PDH Radio - PDH Radio - Dhaka Dhaka – – Khulna Khulna link link PDH & SDH Radio - PDH & SDH Radio - Dhaka Dhaka – – Kushtia Kushtia link link PDH & SDH Radio - PDH & SDH Radio - Bogra Bogra – – Natore Natore – – Rajshahi Rajshahi SDH Radio - SDH Radio - Natore – – Kushtia Kushtia SDH Radio - Natore SDH Radio - Khulna Khulna – – Barisal Barisal – – Laxmipur Laxmipur SDH Radio - SDH Radio - Barisal – – Patuakhali Patuakhali SDH Radio - Barisal SDH Radio - Rajbari Rajbari – – Faridpur Faridpur – – Barisal Barisal SDH Radio - SDH Radio - Chittagong Chittagong – – Cox Cox’ ’s s Bazar Bazar PDH & SDH Radio - PDH & SDH Radio
2. Optical Fiber Back Bone 2. Optical Fiber Back Bone - Dhaka Dhaka – – Chittagong Chittagong - - Bogra Bogra – – Panchagar Panchagar - - Kushtia Kushtia – – Satkhira Satkhira - - Mymensing Mymensing – – Sherpur Sherpur - - Mymensing - Mymensing – – Netrokona Netrokona Total working Optical Fiber network 1,396 Km Total working Optical Fiber network 1,396 Km Dhaka – – Mymensing Mymensing – – Bogra Bogra 337 Km and Dhaka 337 Km and Chittagong – – Cox Cox’ ’s s Bazar Bazar 170 Km Chittagong 170 Km 507 Km Optical Fiber will be connected to BTTB Network by May’ ’ 507 Km Optical Fiber will be connected to BTTB Network by May 2006 2006
3. Upazilla Upazilla Radio Link Radio Link 3. All Upazila HQs are connected to District HQs by point to All Upazila HQs are connected to District HQs by point to point Radio Links. point Radio Links.
Digital Data Network (DDN) Nodes: Nationwide Digital Data Network (DDN) Nodes: Nationwide • • • • • • Bagerhat Bagerhat Dhaka Mymensingh Dhaka Mymensingh • • Jessore Jessore • • • • Chittagong Comilla Chittagong Comilla • • Kushtia Kushtia • • • • Khulna Natore Khulna Natore • • Pabna Pabna • • • • Rajshahi Panchgar Rajshahi Panchgar • • Nilphamari Nilphamari • • • • Sylhet Dinajpur Sylhet Dinajpur • • Rangpur Rangpur • • • • Barisal Thakurgaon Barisal Thakurgaon • • Patuakhali Patuakhali • • • • Bogra Naogaon Bogra Naogaon • • • • Sirajganj Feni Sirajganj Feni • • Sunamganj Sunamganj • • • • Chapai’ ’n n’ ’ganj ganj Noakhali Chapai Noakhali • • Moulavibazar Moulavibazar • • • • Lalmonirhat Magura Lalmonirhat Magura • • Netrokona Netrokona • • • • Tangail Faridpur Tangail Faridpur • • Rangamati Rangamati • • • • Jhenaidaha B.Baria Jhenaidaha B.Baria • • Gazipur Gazipur • • • • Joypurhat Manikganj Joypurhat Manikganj • • Narayanganj Narayanganj • • Munshiganj Munshiganj
BTTB Telephone Exchanges BTTB Telephone Exchanges Total number of Digital Exchanges 270 Total number of Digital Exchanges 270 Moreover EMD analog and CB & Magneto Manual Exchanges are still Moreover EMD analog and CB & Magneto Manual Exchanges are still working in BTTB Network. working in BTTB Network. Total number of subscribers are 915000. Total number of subscribers are 915000. Direct dialing Facilities for national and International calls are available re available Direct dialing Facilities for national and International calls a from 64 Districts, Upazila HQs having Digital Exchanges and national onal from 64 Districts, Upazila HQs having Digital Exchanges and nati calls from upazila upazila and growth center having EMD Analog Exchange. and growth center having EMD Analog Exchange. calls from DDN (Digital Data Network) Node are working in 41 Districts where e DDN (Digital Data Network) Node are working in 41 Districts wher Board Band Internet services are available for corporate users. Board Band Internet services are available for corporate users. Internet services are available for 64 Districts and 206 Upazila. . Internet services are available for 64 Districts and 206 Upazila
A Sample Solution: From a Location in Panchagar Panchagar A Sample Solution: From a Location in to Dhaka Dhaka to DDN DDN Microwave Link Node Node Panchagar Dhaka DSL Modem DSL Modem Router Router Customer Customer LAN LAN Customer Premises Customer Premises * Provides Bandwidth from 64 kbps to 1 mbps with 2-wire DSL Modem
Data Services Data Services • • 1. Dial- -up Internet : Access code up Internet : Access code - - 0101111 0101111 1. Dial • • 2. Lease Internet (dedicated BW 64 Kbps – – 2 Mbps) 2. Lease Internet (dedicated BW 64 Kbps 2 Mbps) • • 3. Point to point TDM lease lines (64 Kbps – – 2 Mbps) 2 Mbps) 3. Point to point TDM lease lines (64 Kbps • • 4. X.25 Packet switch (8Kbps – – 128 Kbps) 128 Kbps) 4. X.25 Packet switch (8Kbps • • 5. E1 line Driver (2 Mbps) – – for ISP and PBX for ISP and PBX 5. E1 line Driver (2 Mbps) • • 6. Domain registration and hosting 6. Domain registration and hosting • • 7. Wave Hosting 7. Wave Hosting Others services to be launched by BTTB very soon : Others services to be launched by BTTB very soon : 1. Frame relay 1. Frame relay 2. ADSL 2. ADSL
BTTB on going Projects BTTB on going Projects - Installation works of 58 MSU (Digital Exchanges) at district level el - Installation works of 58 MSU (Digital Exchanges) at district lev and 220 RSU (178 upazila+ 42 GC) together with 185 digital UHF and 220 RSU (178 upazila+ 42 GC) together with 185 digital UHF radio links to connect with districts HQs. radio links to connect with districts HQs. - Hill Tracts project – – 25 Digital Exchanges and Digital Microwave 25 Digital Exchanges and Digital Microwave - Hill Tracts project link will be install at 22 Upazila and 3 growth center of link will be install at 22 Upazila and 3 growth center of Chittagong hill tract area to connect hill tract area to connect upazila upazila HQs/growth center HQs/growth center Chittagong with District HQs with District HQs - Up- -gradation of Dhaka gradation of Dhaka – – Chittagong Chittagong Optical Fiber link Optical Fiber link up to - Up up to STM 64. STM 64. - Expansion of Chittagong Chittagong – – Cox Cox’ ’s s Bazar Bazar SDH Microwave Link Up SDH Microwave Link Up - Expansion of to 3+ 1 configuration. to 3+ 1 configuration. - -
• • Expansion of Dhaka – – Khulna Khulna, , Bogra Bogra – – Natore Natore – – Rajshahi Rajshahi, , Expansion of Dhaka Natore – – Pabna Pabna – – Kushtia Kushtia SDH Radio link Up to 3+ 1 SDH Radio link Up to 3+ 1 Natore Configuration Configuration • • Bogra – – Nator Nator- - Rajshahi Rajshahi – –Chapai Chapai Nawabganj Nawabganj Optical Fiber link. Optical Fiber link. Bogra • • Keraniganj – Keraniganj –Srinagar Srinagar Optical Fiber link. Optical Fiber link. • • Srinagar – – Madaripur Madaripur new SDH Radio link. new SDH Radio link. Srinagar • • After implementation for Keraniganj Keraniganj – –Srinagar Srinagar Optical Fiber link and Optical Fiber link and After implementation for Srinagar – – Madaripur Madaripur new SDH Radio link there will be a ring new SDH Radio link there will be a ring Srinagar Network between Dhaka – – Barisal Barisal, , Barisal Barisal - - Khulna Khulna and Dhaka and Dhaka – – Network between Dhaka Khulna as well. as well. Khulna
Approved Project Approved Project GMDSS (Global Maritime Distressed GMDSS (Global Maritime Distressed Safety system) in collaboration with Ministry of Shipping. Safety system) in collaboration with Ministry of Shipping. Under this Project two base stations one at Silimpur Silimpur Under this Project two base stations one at (Chiitagong Chiitagong) another at ) another at Mongla Mongla ( (Bagerhat Bagerhat), one Monitoring ), one Monitoring ( station in Dhaka and Microwave links to be installed along station in Dhaka and Microwave links to be installed along the costal belt. the costal belt. After implementation Communications will be passable After implementation Communications will be passable with ships in deep sea through IMMERSAT. with ships in deep sea through IMMERSAT.
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