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CCNP Routing and Switching Quick Reference (642-902, 642-813, 642-832) by Brent Stewart, Denise Donohue, - CCIE No. 9566

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Chapter 8. Voice and Video in a Campus Network

Voice over IP (VoIP) has become common in the business world, and now Video over IP is becoming more integrated into networks. Neither should be added to a network without advance planning to ensure good voice and video quality. Some benefits of converging voice, video, and data networks include

Consolidating network expenses: Only one wire and one switch port are needed per user. One network to provision and manage.

More efficient bandwidth use: Bandwidth can be used for data when there is not an active voice/video session.

Lower telephony costs: Internal calls use the data network, rather than the PSTN.

Innovative services: Ability to unify a company’s various methods of communication. ...

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