Method and arrangement for establishing call connections in a te

Details Method and arrangement for establishing call connections in a te Method and arrangement for establishing call connections in a te

1996-02-23

1999-02-02

Tsang, Fan S.

Telephonic communications

Plural exchange network or interconnection

Interexchange signalling

379 671, 379 8817, 379220, 379243, 379444, 370373, 370384, 370385, 370401, 370466, 370467, H04M 164, H04M 700, H04M 300, H04M 100, H04L 1250, H04Q 1100, H04J 317

Patent

active

058675710

ABSTRACT:
A telecommunications network comprises a virtual transport server (VTS) for making network routing decisions and establishing call connections. Each VTS is interconnected to each signal transfer point in a common channel signaling (CCS) system associated with the network. Each VTS is also interconnected to at least one switch in a transmission network, such as an asynchronous transfer mode (ATM) switch. The VTS maintains routing tables identifying trunk groups associated with each central office switch in the network. During operation, an initial address message received from a signal transfer point in the VTS is processed and subsequently extended to an ATM switch so that a call connection can be established. Upon completion of the established call, the VTS releases resources associated with the ATM switch.

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patent: 5583920 (1996-12-01), Wheeler, Jr.
patent: 5602909 (1997-02-01), Carkner et al.
patent: 5703876 (1997-12-01), Christie

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