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APPARATUS FOR A TRADITIONAL TERMINAL TO ACCESS AN IMS SYSTEM AND THE METHOD THEREOF

  • US 20100046499A1
  • Filed: 07/22/2005
  • Published: 02/25/2010
  • Est. Priority Date: 07/22/2005
  • Status: Active Grant
First Claim
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1. An apparatus for realizing an access of a legacy terminal to an IMS system, wherein said IMS system has a CSCF function entity comprising:

  • a session control module that provides signaling interworking between terminal signaling and SIP signaling and controls terminal registration and session;

    a downlink signaling interface function module that provides signaling interaction with one or more legacy terminals, and provides legacy switch function for one or more legacy terminals operating under the control of said session control module;

    a downlink bearer interface function module that provides a media channel with the one or more legacy terminals;

    an uplink signaling interface function module that provides SIP signaling interaction with CSCF function entity of an IMS core network, and provides SIP UA function for one or more legacy terminals operating under the control of said session control module;

    an uplink bearer interface function module that provides a media channel with an IMS carrier network; and

    a media interworking module that provides connection and media adaptation between the uplink bearer interface function module and the downlink bearer interface function module operating under the control of said session control module.

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