What is a crc sequence used for

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What is a CRC sequence used for? Give at least two different ways the PSTN may setup a voice circuit ? List at list five drawbacks or challenges designers faced in making VoIP a reality ? List at least four tasks the gateway may do ? List at least four transmission media and formats that a media gateway should be able to support.

Reference no: EM131301817

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What is a crc sequence used for : List at least four tasks the gateway may do ? List at least four transmission media and formats that a media gateway should be able to support.
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