| 摘要 |
A method of facilitating access to IP Multimedia Subsystem, IMS, services by non-IMS enabled terminals. The method comprises registering a non-IMS enabled terminal with a Home IMS gateway, and, in response to said registration, performing an IMS registration on behalf of said terminal between the Home IMS gateway and the IMS using information obtained from an ISIM application present at the Home IMS gateway.
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