Proxy for calls to roaming subscriber and proxy method for...

Details Proxy for calls to roaming subscriber and proxy method for... Proxy for calls to roaming subscriber and proxy method for...

2007-10-02

2007-10-02

Feild, Joseph (Department: 2617)

Telecommunications

Radiotelephone system

Special service

C455S428000, C455S445000, C455S432100, C455S432200, C455S435100

Reexamination Certificate

active

11086736

ABSTRACT:
A Proxy for calls to a roaming subscriber CRP including a voice bear and a signaling management module, a call access control module, a message processing module, and a waiting call data storage module; and a proxy method for calls to a roaming subscriber including initiating a request to the CRP; the CRP informs the roaming subscriber to call back; and then accomplishing the call switching for the calling subscriber and the called subscriber; and with the afore-mentioned device and method, both the calling subscriber and the called subscriber in this call actually act as a calling party from the viewpoint of the CRP, to avoid unnecessary long distance call costs for both parties and improving communication quality for roaming subscribers.

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patent: WO 02/13567 (2002-02-01), None
patent: PCT/CN2003/000772 (2003-09-01), None
patent: WO 2004/028172 (2004-04-01), None

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