Until PBX systems incorporated computer technology into its call processing system design, features and functions were extremely limited. Station user features were restricted to those operations that could be handled by mechanical means. The general availability of computer SPC meant that features could be based on software programming tools, and feature development was limited only by a programmer’s imagination. Many PBX functions that are currently viewed as basic telephony capabilities, such as call forwarding and station activated conferencing, were first implemented through computer SPC. Network routing tables and CDR would not be available without computer programming capabilities.

The use of UTP copper wiring for MB-per-second, in-building data networks was first proposed in the mid-1980s and became the standards were defined in 1994. Category 5 cables usually have four twisted pairs of copper wire and are terminated with eight-wire RJ45 miniature connectors. This cable delivers 100-Mbps Ethernet bitstreams up to a distance of l00m (325 ft) between the electronic equipment (ex: switch) and the desktop device

Cisco Systems cannot claim to have invented IP-PBXs, but it certainly established the market for these systems by making IP telephony legitimate. This product started shipping in mid-2000. Two years later Cisco claimed to have shipped 800,000 IP phones and, more impressively, to have equipped 6 million ports with power for IP phones.

MX Digital’s on-line hosted service offers a complete and robust set of contact centre systems such as Automatic Call Distribution (ACD),Interactive Voice Response (IVR), Predictive, Preview, and Progressive Dialler, Campaign Management & Interaction History, Multimedia Recording & Quality Monitoring, Automatic Call Distribution, Voice Over IP, Computer Telephony Integration, Predictive Dialer and Call Centre Solutions, Email Management, Web Chat & Web Collaboration, Video Conferencing and Administration & Reporting.