| 摘要 |
<p>Disclosed is a method for supporting multiple time zones in an IP multimedia subsystem (IMS). The method comprises: a proxy call session control function (PCSCF) network element carrying time zone information in a Session Initiation Protocol (SIP) message sent to a control layer network element other than itself (201); after obtaining the time zone information, the control layer network element receiving the SIP message carrying the time zone information in an SIP message sent to a service layer network element (202); and the service layer network element receiving the SIP message sent by the control layer network element and obtaining the time zone information carried in the SIP message (203). Also disclosed are a system for supporting multiple time zones in an IMS and a charging method and system. Through the solution of the present invention, the time zone information can be transferred to various network elements in the IMS, and a charging data record (CDR) can carry local time of a user in a call, thereby improving the accuracy of charging.</p> |
