obtain identification of caller
21Russian apartment bombings — Location Russia (Buynaksk Moscow Volgodonsk) Date Septembe …
22Number Five Crossbar Switching System — The Number Five Crossbar Switching System or 5XB switch, designed by Bell Labs and made by Western Electric, was in use in Bell System telephone exchanges from 1948 to the 1980s. Its principal use was as a Class 5 telephone switch, though… …
23United World Telecom — is a leading switch based telecommunications service provider, located in Florida, USA, serving retail, wholesale, and corporate customers worldwide. Established in 1996, United World Telecom has rapidly expanded its global presence in the last… …
Страницы
