Not very long, remote access to corporate network was like caviar, limousines and luxury resorts luxury, accessible only to a privileged few. The concept of working from home was almost unknown. Links with home offices, where they existed, were extremely limited in number and scope. They were mostly limited to insurance offices, sales in the field, and a little good to lawyers. For the work of other quasi-totality was synonymous with a daily commute to the office..
Even connections to corporate IT departments of the branches were far from universal. In fact, it was much longer under a system of remote access is avoided whenever possible by network operators and their staff. The thorny issue simply made to many technical, economic and political. Almost without exception, presented each part of the dial-a barrier of some kind of implementation. The two factors that have worked hard to dial was the logistics and economics.
Logistics came into play, because it was not providing a direct connection to remote sites. The construction was almost always a logistical nightmare. In addition, the facilities involved a lot of work and coordination, both by the telephone company and information services company.
Remote connectivity costs were as astronomical as installations were complex. Equipment was expensive, line costs were far from inexpensive and the personnel required to support and service remote connections did not come cheaply.
How remote connections took place, the most common form of access was a slow link speed serial terminal infamous dumb. These terminals were large enough, the unit of intimidation, which is generally associated with the central computer of the company by a coaxial cable. They also have a curious device called looking controller.

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