Let's say you've been entrusted with developing a network for a large organization that has to accommodate a broad range of protocols and applications, such as phone and video calls, file sharing, and email. The company's requirement for safe, encrypted online communication with its business partners and customers stems from its several office locations.   How would you make sure that voice and video calls get priority over other data transfers to guarantee the best possible quality? If so, what technique or protocol would you employ?

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