The Pakistan Telecommunication Authority (PTA), the licensing authority for electronic services, has imposed a number of restrictions of the use of the Internet. Licenses to ISPs (Internet Service Provider) will be issued under the terms of the highly restrictive Telephone and Telegraph Act of 1885.
Under the terms of the agreement, users are prohibited from using any sort of data encryption and have to agree that their electronic communications may be monitored by government agencies. Transmission or reception of obscene or objectionable material is also prohibited and may lead not only to immediate disconnection of service but also to prosecution by authorities.
Users of electronic services will also have to submit to service provider's copies of the National Identity Card. According to the terms of issuance of licenses, service providers will also be responsible for ensuring that the programs and information provided through electronic services do not "come into direct clash with accepted standards of morality and social values in Pakistan."
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The water-clocks are an early long-distance-communication-system. Every communicating party had exactly the same jar, with a same-size-hole that was closed and the same amount of water in it. In the jar was a stick with different messages written on. When one party wanted to tell something to the other it made a fire-sign. When the other answered, both of them opened the hole at the same time. And with the help of another fire-sign closed it again at the same time, too. In the end the water covered the stick until the point of the wanted message.