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System and method for executing originating services in a terminating network for IMS and non-IMS applications

  • US 20070206613A1
  • Filed: 08/24/2006
  • Published: 09/06/2007
  • Est. Priority Date: 03/02/2006
  • Status: Active Grant
First Claim
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1. A system configured to execute originating services in a terminating IP Multimedia Subsystem (IMS) network in which a triggered application may or may not support IMS, comprising;

  • a) a carrier or cellular gateway server (GS-C) configured to operate as an IMS-compliant SIP application server (SIP-AS) communicating with a terminating network gateway server (GS-E) located in an enterprise via a direct signaling connection, the GS-C configured to prepare the GS-E for an upcoming communication;

    b) the GS-C configured to operate as an IMS-compliant SIP application server (SIP-AS) responding to a serving CSCF (S-CSCF) and configured to route the session to a destination in the terminating IMS network;

    c) the GS-E configured to receive the session in the terminating IMS network and act as an IMS-compliant interrogating CSCF (I-CSCF); and

    d) the GS-E configured to act as an IMS-compliant S-CSCF, wherein the I-CSCF is configured to route the session for handling.

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