Selective call anchoring in a multimedia subsystem

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United States of America Patent

PATENT NO 8180338
SERIAL NO

11452743

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Abstract

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The present invention dynamically determines whether call control for a call from a user element should be anchored in a multimedia subsystem (MS) or in a circuit-switched subsystem (CS) based on the location of the user element. Calls may be anchored in the MS regardless of whether the user element is currently served by a cellular network of the CS or a WLAN of the MS. In particular, the anchoring decision is based on whether the user element is within an MS anchoring zone, which defines an area or areas where calls for the user element should be anchored in the MS. Accordingly, when the user element is outside of the MS anchoring zone, calls for the user element are not anchored in the MS. When the user element is within the MS anchoring zone, calls for the user element are anchored in the MS.

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Patent Owner(s)

Patent OwnerAddress
RIBBON COMMUNICATIONS OPERATING COMPANY INC4 TECHNOLOGY PARK DRIVE WESTFORD MA 01886

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Sylvain, Dany Gatineau, CA 169 3435

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