Multilocation-extension-dialing meaning

An IN (Intelligent Network) service that allows an extension number to be assigned to individuals so they can be reached no matter where they are.
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In the advanced intelligent network (AIN) specifications, a virtual private network (VPN) service of the public switched telephone network (PSTN) that provides for network routing of calls based on abbreviated numbers.This VPN service resembles a coordinated dialing plan in a networked PBX environment. See also AIN, coordinated dialing plan, PBX, PSTN, and VPN.
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