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Implementing Cisco IP Telephony and Video, Part 2 (CIPTV2) Foundation Learning Guide (CCNP Collaboration Exam 300-075 CIPTV2), Third Edition by Akhil Behl, William Alexander Hannah

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Chapter 4. URI-Based Dial Plan for Multisite Deployments

The way in which people communicate has evolved at an exponential rate over the past few years. Fifteen years ago, had anyone heard of Facebook? Immersive video abilities were a dream, and many organizations were using primary rate interface (PRI) as their primary means to interface with the public switched telephone network (PSTN) and their telco provider. Today, immersive video capabilities are prevalent, and instant messaging is often preferred over traditional calls. Cisco WebEx is used as a replacement to the traditional conference room, and organizations are embracing alternative ways of keeping users connected.

Today, users can be reached on multiple devices and via different technologies ...

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