| 摘要 |
<P>PROBLEM TO BE SOLVED: To enable routing of calls using telephone numbers (and not SIP URIs with embedded telephone numbers) as identifiers of target users of those calls. <P>SOLUTION: The present invention introduces a conversion module which is located within the IMS terminating network and is capable of converting SIP URIs with embedded telephone numbers into equivalent tel URIs which are then used by a terminating I-CSCF and S-CSCF to query the SLF and/or HSS so that they can route the calls to the target users. <P>COPYRIGHT: (C)2013,JPO&INPIT |
