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RanksTel
RanksTel ( bn, র্যাংকসটেল) is a Bangladeshi telecommunications company. It is a private public switched telephone network (PSTN) operator in Bangladesh, and nation's second largest PSTN operator. Ranks Telecom Limited, a member of Rangs Group, launched its fixed line operation under the brand name RANKSTEL on 14 April 2005. RANKSTEL is registered with Registrar of Joint Stock Companies. RANKSTEL holds PSTN and ISP licenses to operate nationwide. RANKSTEL has also been awarded an International Gateway (IGW) license and currently originates and terminates international voice traffic. RANKSTEL's physical infrastructure includes about 10 major hubs (switching and transmission) and more than 200 access nodes across the country. History On 7 June 2004, Ranks Telecom Limited, a sister company of the RANGS Group, got a PSTN license to operate in Chittagong, Sylhet and Dhaka. On 13 January 2005, RANKSTEL received an operational license from BTRC, allowing them to ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rangs Group
Rangs Group is one of the largest Bangladeshi industrial conglomerates. The industries under this conglomerate include automobile, electronics, real estate, shipping, pharmaceuticals etc. A Rouf Chowdhury is the chairperson of Rangs Group and Bank Asia Limited. It is the official dealer of Mahindra, Mercedes-Benz, Mitsubishi, Morris Garages, Sony, Toshiba etc. in Bangladesh. Abdur Rouf Chowdhury is the present chairman of the group. The company also owns RanksTel. History Ranks Agro Biotech was established by the group in 2000. Rangs Pharmaceuticals Limited was established in 2003. Ranks Real Estate Limited was established in 2008 and marked the entry of the group in real estate. Zest Polymer Limited was established in 2009 to manufacture polymer and plastic bottles for the pharmaceutical industry. Akhter Hussain, founder of Rangs Group, died on 12 February 2022. Subsidiaries * Bank Asia Limited * Reliance Insurance Limited Reliance Insurance Limited, was founded i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Telecommunication
Telecommunication is the transmission of information by various types of technologies over wire, radio, optical, or other electromagnetic systems. It has its origin in the desire of humans for communication over a distance greater than that feasible with the human voice, but with a similar scale of expediency; thus, slow systems (such as postal mail) are excluded from the field. The transmission media in telecommunication have evolved through numerous stages of technology, from beacons and other visual signals (such as smoke signals, semaphore telegraphs, signal flags, and optical heliographs), to electrical cable and electromagnetic radiation, including light. Such transmission paths are often divided into communication channels, which afford the advantages of multiplexing multiple concurrent communication sessions. ''Telecommunication'' is often used in its plural form. Other examples of pre-modern long-distance communication included audio messages, such as code ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dhaka
Dhaka ( or ; bn, ঢাকা, Ḍhākā, ), formerly known as Dacca, is the capital and largest city of Bangladesh, as well as the world's largest Bengali-speaking city. It is the eighth largest and sixth most densely populated city in the world with a population of 8.9 million residents as of 2011, and a population of over 21.7 million residents in the Greater Dhaka Area. According to a Demographia survey, Dhaka has the most densely populated built-up urban area in the world, and is popularly described as such in the news media. Dhaka is one of the major cities of South Asia and a major global Muslim-majority city. Dhaka ranks 39th in the world and 3rd in South Asia in terms of urban GDP. As part of the Bengal delta, the city is bounded by the Buriganga River, Turag River, Dhaleshwari River and Shitalakshya River. The area of Dhaka has been inhabited since the first millennium. An early modern city developed from the 17th century as a provincial capit ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bangladesh
Bangladesh (}, ), officially the People's Republic of Bangladesh, is a country in South Asia. It is the List of countries and dependencies by population, eighth-most populous country in the world, with a population exceeding 165 million people in an area of . Bangladesh is among the List of countries and dependencies by population density, most densely populated countries in the world, and shares land borders with India to the west, north, and east, and Myanmar to the southeast; to the south it has a coastline along the Bay of Bengal. It is narrowly separated from Bhutan and Nepal by the Siliguri Corridor; and from China by the Indian state of Sikkim in the north. Dhaka, the capital and list of cities and towns in Bangladesh, largest city, is the nation's political, financial and cultural centre. Chittagong, the second-largest city, is the busiest port on the Bay of Bengal. The official language is Bengali language, Bengali, one of the easternmost branches of the Indo-Europe ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Telecommunications Company
A telephone company, also known as a telco, telephone service provider, or telecommunications operator, is a kind of communications service provider (CSP), more precisely a telecommunications service provider (TSP), that provides telecommunications services such as telephony and data communications access. Many telephone companies were at one time government agencies or privately owned but state-regulated monopolies. The government agencies are often referred to, primarily in Europe, as PTTs ( postal, telegraph and telephone services). Telephone companies are common carriers, and in the United States are also called local exchange carriers. With the advent of mobile telephony, telephone companies now include wireless carriers, or mobile network operators. Most telephone companies now also function as internet service providers (ISPs), and the distinction between a telephone company and an ISP may disappear completely over time, as the current trend for supplier convergenc ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Public Switched Telephone Network
The public switched telephone network (PSTN) provides infrastructure and services for public telecommunication. The PSTN is the aggregate of the world's circuit-switched telephone networks that are operated by national, regional, or local telephony operators. These consist of telephone lines, fiber optic cables, microwave transmission links, cellular networks, communications satellites, and undersea telephone cables, all interconnected by switching centers which allow most telephones to communicate with each other. Originally a network of fixed-line analog telephone systems, the PSTN is now almost entirely digital in its core network and includes mobile and other networks, as well as fixed telephones. The technical operation of the PSTN adheres to the standards created by the ITU-T. These standards allow different networks in different countries to interconnect seamlessly. The E.163 and E.164 standards provide a single global address space for telephone numbers. The com ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
PSTN
The public switched telephone network (PSTN) provides infrastructure and services for public telecommunication Telecommunication is the transmission of information by various types of technologies over wire, radio, optical, or other electromagnetic systems. It has its origin in the desire of humans for communication over a distance greater than tha .... The PSTN is the aggregate of the world's circuit-switched telephone networks that are operated by national, regional, or local telephony operators. These consist of telephone lines, fiber optic cables, microwave transmission links, Routing in cellular networks, cellular networks, communications satellites, and undersea telephone cables, all interconnected by switching centers which allow most telephones to communicate with each other. Originally a network of fixed-line Analog signal processing, analog telephone systems, the PSTN is now almost entirely digital in its core network and includes mobile and other networks, a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
VoIP
Voice over Internet Protocol (VoIP), also called IP telephony, is a method and group of technologies for the delivery of voice communications and multimedia sessions over Internet Protocol (IP) networks, such as the Internet. The terms Internet telephony, broadband telephony, and broadband phone service specifically refer to the provisioning of communications services (voice, fax, SMS, voice-messaging) over the Internet, rather than via the public switched telephone network (PSTN), also known as plain old telephone service (POTS). Overview The steps and principles involved in originating VoIP telephone calls are similar to traditional digital telephony and involve signaling, channel setup, digitization of the analog voice signals, and encoding. Instead of being transmitted over a circuit-switched network, the digital information is packetized and transmission occurs as IP packets over a packet-switched network. They transport media streams using special media delivery proto ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
