Question: Skype is a wellknown VoIP system used not only for peertopeer conversations but also for audio and video conferencing involving three or more callers. Assume

Skype is a wellknown VoIP system used not only for peertopeer conversations but also for audio and video conferencing involving three or more callers. Assume a video conference with a central server on Skype has N callers, and each caller generates a constant data stream at rate r bps. How many bits per second does the call initiator need to send? How many bits does each of other N1 callers need to send?

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