Sangoma.com The Customer Metro Trains Melbourne’s (MTM) network consists of over 3,000 employees and interconnects more than 40 three-car train sets with 215 railway stations along 520 miles of track across Victoria’s capital city. The trains travel over 18 million miles, providing more than 228 million customer boardings each year. The trains offer over 14,000 services each week, and carry over 415,000 passengers each weekday. Business Challenges MTM has over 900 telephony end-points across the network, many of which are auto-answer units designed to present public address information to customers at railway stations, while others are on-demand service information units that present service information when requested. The primary challenge was the interface to the existing PBX sys

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