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With PTCL and TWA sharing a duopoly of internet backhaul by operating majority of the submarine communications cables coming in to the country, both networks engage in anti-competitive behaviour with price gouging and illegal blocking of Tier-2 ISPs that purchase bandwidth through resellers.
Pakistan Telecommunication Company Ltd., commonly known as PTCL, ... PTCL decided to increase the 7-digit subscriber numbers to 8-digits, adding "9" before existing ...
The Telecommunications Ordinance of 1994 created the Pakistan Telecommunication Authority (PTA), Pakistan's first independent telecommunications regulator, and the Pakistan Telecommunication Company Ltd (PTCL), a state-owned monopoly. [1] Due to a lack of competition, local telephone call rates were high and international call rates were even ...
Following PTCL's privatization, Ufone became a part of Etisalat by e& in 2006. [citation needed] In 2017, Ufone was the only company in the Pakistani telecommunications market that did not have 4G data services. It launched 4G in August 2019. [3] In 2019, PTCL and Ufone were merging a number of their departments. [6]
Country or Territory Operator VoLTE B1 2100 MHz B3 1800 MHz B5 850 MHz B7 2600 MHz B8 900 MHz B20 800 MHz B28 700 MHz B31 450 MHz B40 2300 MHz B41 2500 MHz CA [G 1] schemes References & Notes
A number of extensions have been made to TCP over the years to increase its performance over fast high-RTT links ("long fat networks" or LFNs). TCP timestamps (RFC 1323) play a double role: they avoid ambiguities due to the 32-bit sequence number field wrapping around, and they allow more precise RTT estimation in the presence of multiple ...