METHOD FOR PROVIDING IMS SUPPORT FOR ENTERPRISE PBX USERS
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United States of America Patent
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app pub date -
Sep 30, 2013
filing date -
Sep 23, 2008
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Abandoned
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Abstract
An architecture and procedures by which an NGN can provide the following capabilities to an NGCN user: basic terminating service in the peering model; enhanced terminating services in the peering model; enhanced originating services in the peering model; and roaming service in the subscription and peering models. All capabilities are provided in an easily scalable manner via provisioned subscriber data and small modifications to existing IMS procedures. In one embodiment, an NGN is configured among the external networks to receive all SIP requests intended for the NGCN users of an NGCN interconnected to the NGN via the peering model (this NGN is the trunking home NGN), and the NGN forwards these requests to the NGCN for handling using request retargeting.
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