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What is T REC Q.Sup49 201402 I!!PDF E about?

This technical report from ITU-T specifies the signalling requirements to support IP telephony. It defines IP telephony as the exchange of voice information using Internet protocols while distinguishing it from Internet telephony. It classifies network configurations into four types based on whether phones or IP phones are used at each end. It identifies the network capabilities needed to support IP telephony, including interworking with traditional networks. Finally, it outlines the signalling requirements

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oskarift

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EN