Connect customized ring back tone service only at one MSC when intersystem page is involved
US7515898B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 5, 2004 |
| Grant date | Apr 7, 2009 |
| Priority date | — |
| Expiry date | Jun 1, 2024 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04M2207/18
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
Embodiments of the present method allow only one serving mobile switching center to connect an incoming call from a communication terminal to a customized ring back tone server when a called mobile terminal moves from an area of a serving mobile switching center to an area of a bordering mobile switching center. Embodiments may have the steps of: passing, by the serving mobile switching center, an indicator that indicates whether customized ring back tone service is already provided for an incoming call to a mobile terminal to all bordering mobile switching centers when intersystem page operation is in effect; saving, upon receiving the indicator by each bordering mobile switching center, the information up for later processing in each bordering mobile switching center; checking, when a respective bordering mobile switching center receives the mobile terminating call, the indicator and checking active customized ring back tone service in a profile of the mobile terminal to determine if a customized ring back tone is to be provided to the communication terminal; and connecting, if the indicator indicates that the customized return ring back tone is not already connected to the commu…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.