Method, equipment and system for processing international roaming call of color ring user

Abstract

The invention discloses a method for processing an international roaming call of a color ring user. The method comprises the following steps: an SRI message for inquiring the routing information of the user is routed to a platform with one card and a plurality of numbers when a call is initiated to a network side number of a user visiting area; the platform with one card and a plurality of numberstransfers the SRI message to a home location register of a network main number of a user home location when the SRI message carries a color ring mark of the network in the user home location; the platform with one card and a plurality of numbers receives a user routing information inquiry response SRI-ACK message returned by the home location register; when the SRI-ACK message carries the color ring service code, the platform with one card and a plurality of numbers deletes a color ring service code and transfers the SRI-ACK message to a mobile switching center of the network of the user visiting area for calling processing. The invention also discloses the platform with one card and a plurality of numbers and a system for processing an international roaming call of a color ring user. Theinvention can ensure smooth calling and improve the user experience.

Description

technical field [0001] The invention relates to the technical field of communication, in particular to a call processing method, device and system for international roaming of a ring back tone user. Background technique [0002] At present, the structure of the CRBT service processing system is usually as follows figure 1 As shown, the entities included in the system are: CRBT platform, calling MSC (Mobile Switching Center, mobile switching center) connected with CRBT platform, music operation management platform, SCP (Service Control Point, business control point), BOSS (Business Control Point), BOSS (Business Operation Support System, business operation support system), Internet users connected to the ring tone platform through the Internet, ISMG (Internet Short Message Gateway, Internet short message gateway), USSDC (Unstructured Supplementary Service Data Center, unstructured supplementary service data center) , WAP gateway (Wireless Access Protocol, wireless access pro...

AI Technical Summary

Problems solved by technology

[0044] 1. If the visited operator A adopts the same ring tone scheme as the home operator D, the HLR will return an SRI_ACK message with SS-CODE=254, and the originating MSC of the visited network will connect the call path to The CRBT platform to which the secondary number belongs, but the CRBT platform does not actually have the CRBT service information of the secondary number, so it may cause abnormal results such as call interruption

[0045] 2. If operator B in the visiting place adopts a different CRBT scheme from the home operator D, for example, when a user of operator D visits the place where operator B is located, operator B will use its own CRBT scheme in the SRI With the CRBT logo of operator B, the HLR returns to the virtual MSRN to connect the call to the gateway office (CRBT gateway office) of the home operator D that has the CRBT service function, thus creating a circuitous international call path and causing international settlement problems

[0046] To sum up, since the MSC of the visited place carries the CRBT identifier of the visited network in the SRI message sent to the HLR of the user's main number, the HLR of the user's main number responds to the received SRI message according to the implementation scheme of the home CRBT service, and different Operators in countries and regions may use the same technical solution to realize the color ring service, or may use different technical solutions to realize the color ring service, which may lead to interruption of calls or detours of international calls, seriously affecting user experience

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