Push-to-talk signaling and media inter-working architecture

Details Push-to-talk signaling and media inter-working architecture Push-to-talk signaling and media inter-working architecture

2008-04-15

2008-04-15

Trinh, Tan (Department: 2618)

Telecommunications

Transmitter and receiver at separate stations

Plural transmitters or receivers

C455S552100, C455S507000, C455S406000

Reexamination Certificate

active

07359726

ABSTRACT:
An inter-working network for facilitating dispatch communications between subscribers of disparate dispatch networks includes core inter-working components and regional inter-working components. The core inter-working components include a network management system, an address translation server, a location server and a billing clearinghouse. Regional inter-working components include a plurality of points-of-presence and a plurality of border gateways interfacing each dispatch network to a point-of-presence. The billing clearinghouse collects call data from the regional points-of-presence for dispatch sessions facilitated by the inter-working architecture, performs a settlement function and creates corresponding inter-working invoices.

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