Method and system for GSM billing during WLAN roaming

Details Method and system for GSM billing during WLAN roaming Method and system for GSM billing during WLAN roaming

2002-10-08

2009-02-24

Bhattacharya, Sam (Department: 2617)

Telecommunications

Radiotelephone system

Usage measurement

C455S411000, C455S435100, C713S185000

Reexamination Certificate

active

07496344

ABSTRACT:
The invention relates to a method and system for recording and billing of services during roaming of a mobile IP node (20) in heterogeneous WLANs, in which first call detail records are transmitted from an access server (23/1001) to a billing module (1003) and second call detail records from the access server to a proxy module (1002). By means of a clearing module (1004), the obtained service is billed (1016) at a provider (1008) of a fixed network (1007) and/or TAP files (1017) are transmitted to a GSM (1005) service provider (1006) for billing.

REFERENCES:
patent: 7171460 (2007-01-01), Kalavade et al.
patent: 2005/0177733 (2005-08-01), Stadelmann et al.
patent: WO 01/76297 (2001-10-01), None
Ostrowski, Frank; Roaming und Handover zwischen UMTS und Funk-LAN; XP-001124094; pp. 24-26; Jun. 2002.

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