Method, system and apparatus for providing internet protocol multimedia subsystem business
A multimedia subsystem and service technology, applied in the communication field, can solve the problems of no definition, no involvement, repeated triggering of IMS services, etc., and achieve the effect of avoiding repeated triggering
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Embodiment 1
[0056] This embodiment describes a method for providing a calling IMS service, see figure 2 , the method of this embodiment may include the following steps:
[0057] When the call request needs to be routed after the triggering of the IMS service on the calling side is completed, step 201 is performed;
[0058] Step 201: When judging that the call is not routed in the IP Multimedia Subsystem, add a trigger prefix before the called number;
[0059] Judging that the call is not routed in the IP Multimedia Subsystem includes: inquiring that there is no SIP Uniform Resource Identifier corresponding to the called number, then judging that the call is not routed in the IP Multimedia Subsystem.
[0060] If the SIP URI corresponding to the E164 number is obtained from the E164 number mapping server, then according to the SIP URI, route the call request to the IP Multimedia Subsystem to which the called user belongs within the network.
[0061] If multiple calling IP multimedia sub...
Embodiment 2
[0065] This embodiment describes the triggering process of the calling side IMS service, see image 3 , the triggering process of the IMS service on the calling side includes the following steps:
[0066] Step 301: the softswitch platform serving the calling user inquires from the SHLR;
[0067] The softswitch platform queries the SHLR, and the SHLR finds that the calling user has subscribed to the IMS service, so it adds the IMS service trigger prefix of the calling side before the called number and returns it to the softswitch platform.
[0068] Step 302: the above-mentioned softswitch platform routes the call to the I-CSCF;
[0069] The softswitch platform triggers the IMS service on the calling side, and routes the call to the IMS service platform. Here, the call is routed to the I-CSCF.
[0070] Step 303: The I-CSCF triggers the prefix to query the HSS according to the calling IMS service to obtain the calling user's S-CSCF;
[0071] Step 304: I-CSCF routes the call to...
Embodiment 3
[0083] This embodiment describes a method for providing IMS services on the called side, see Figure 4 , the method of this embodiment may include the following steps:
[0084] After processing the IMS service on the called side, when the call request needs to be routed, step 401 is performed;
[0085] Step 401: Determine whether the called number matches the wildcard public service identity;
[0086] The public service identity is an identifier, which can be a SIP URI. Wildcard means that the public service identity can be a prefix, that is, it can correspond to a service trigger prefix. E.g:
[0087] The called number is 1234+0755123456, and 1234 is the service trigger prefix. Then 1234 can be configured as a wildcard PSI in the IMS domain. In this way, no matter what kind of called number, as long as the preceding service triggering prefix is the same, the triggered IMS service is the same. For example, 1234+0755123456 and 1234+020123456 both trigger a voicemail ser...
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