Personal Security has a strategically advantageous position in terms of its distance from the building that houses OTE’s central office in Marousi. In 2015, within a 12-month period, a proprietary fibre optic dual path cable was laid to connect the company to the digital – optical telephone exchange at OTE headquarters. In particular, the necessary excavation work was done to install a proprietary DSLAM optical in the company’s Computer Room, which is online 24 hours with OTE’s digital service. The project was developed following the most stringent specifications provided by OTE which also certified the works using the latest generation OTDR Power meter equipment. As a result, Personal Security serves more than 35,000 subscribers using the most up-to-date telecommunications platform available to modern Alarm Reception Centres – a platform that can serve up to 1,000 telephone lines, and up to 240 VDSL connections.