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- ...tions, base stations, communication links, switching center(s) and network databases which can be linked to other systems and networks as you can see in the sc4 KB (547 words) - 10:52, 20 March 2013
- ...//en.wikipedia.org/wiki/Local_number_portability Local Number Portability] databases over the SIP protocol.5 KB (700 words) - 10:31, 4 November 2013