Method for preventing call congestion on outgoing trunks of a lo

Telephonic communications – Plural exchange network or interconnection – With interexchange network routing

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Details

379137, 379221, 379224, 379230, H04M 700, H04M 1500

Patent

active

059534036

ABSTRACT:
A system and method of preventing call congestion on outgoing trunks of a local telephone exchange is provided. A virtual trunk group representing a percentage of the total trunk capacity is assigned at the local exchange for carrying calls which are likely to cause congestion. In one embodiment of the invention, call segregation is achieved by using the prefixed dialling code 1+1 followed by the destination number. In another embodiment of the invention, segregation is dynamically achieved using Advanced Intelligent Network (AIN) routing.

REFERENCES:
patent: 4345116 (1982-08-01), Ash et al.
patent: 4565903 (1986-01-01), Riley
patent: 4850007 (1989-07-01), Marino et al.
patent: 5253288 (1993-10-01), Frey et al.
patent: 5333184 (1994-07-01), Doherty et al.
patent: 5420914 (1995-05-01), Blumhardt
patent: 5473630 (1995-12-01), Penzias et al.

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