US 6,983,329 B1 | ||
Method for reducing signaling in an telecommunications network by arranging gatekeepers in a hierarchical structure | ||
Espen Skjæran, Oslo (Norway); and Espen Iveland, Drammen (Norway) | ||
Assigned to Telefonaktiebolaget LM Ericsson (publ), Stockholm (Sweden) | ||
Filed on Oct. 03, 2000, as Appl. No. 9/677,815. | ||
Claims priority of application No. 1999-4828 (NO), filed on Oct. 04, 1999. | ||
Int. Cl. G06F 15/173 (2006.01); G06F 13/00 (2006.01); H04L 12/28 (2006.01) |
U.S. Cl. 709—238 | 5 Claims |
1. Method for establishing a connection between a calling party and a called party in a H.323 network wherein gatekeepers
are arranged in a hierarchical manner, the method comprising:
receiving by a first gatekeeper a Set-up command issued from a connected calling user,
performing a user location algorithm by said first gatekeeper on its locally attached users,
if this algorithm fails, sending a Location Request message to its lower level gatekeepers, wherein each lower level gatekeeper
performs a user location algorithm on its attached users and lower level gatekeepers,
if these user location algorithms fail, sending a Location Request message to its higher level gatekeeper, which performs
a user location algorithm on its attached users and gatekeepers except the originating gatekeeper,
if one of the user location algorithms succeeds, the gatekeeper concerned sending a Location Confirm message to the first
gatekeeper,
the first gatekeeper sending a Set-up message to the gatekeeper which has issued the Location Confirm message, which gatekeeper
forwards said Set-up message to the called user, whereupon said connection is established.
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