Systems and methods for providing service migration between...

Details Systems and methods for providing service migration between... Systems and methods for providing service migration between...

2004-08-02

2009-11-17

Cho, Hong (Department: 2419)

Multiplex communications

Pathfinding or routing

Combined circuit switching and packet switching

C455S461000

Reexamination Certificate

active

07620034

ABSTRACT:
Systems and methods for a call flow for a mobile directory number (MDN) from a first phone to a second phone which has been intra-service ported. The system includes: a first switch of a first technology; a second switch of a second technology; and a local number portability database (LNP). The LNP stores local routing numbers (LRN) associated with the MDN. The WLNP system determines whether a call, from the first phone, is received by a public switched telephone network (PSTN) or the first switch. If the call is received by the PSTN with the LRN, the call is routed to the second switch based on the LRN. If the call is received by the first switch without the LRN, the first switch queries the LNP for the LRN and the call is routed intra-carrier to the second switch.

REFERENCES:
patent: 6240293 (2001-05-01), Koster
patent: 6738633 (2004-05-01), Kim et al.
patent: 2006/0240819 (2006-10-01), Xu et al.

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