The modern world is hinged on internet and telecommunication connectivity. We cannot imagine a world without the internet or telephone/cellphone connections, primarily because most of our daily business is based on connecting with people living hundreds and thousands of miles away. As high-speed networks and data-connections continue to expand across the country, more people than ever before are needed to maintain the critical networks and infrastructure created by the Internet. However, the geographical expansion of data networks also means that it is highly impractical for many telecom and media-driven services to keep full-time field engineers on staff. Embracing the on-demand marketplace for freelancers makes it possible to serve a wider geographical area while minimizing the labor costs and overhead required to have full-time field telecom engineers on the payroll.
https://www.fieldengineer.com/c1/deployment-of-polycom-voip-phones