Wireless emergency call (eCall) devices and eCall service subscription management
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United States of America Patent
Stats
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Mar 29, 2016
Grant Date -
Oct 2, 2014
app pub date -
Jun 12, 2014
filing date -
Jul 20, 2011
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
We disclose a new type of wireless telecommunications subscription service and related methods. In some embodiments, the new subscription service may be used by an eCall only MS, or by any other suitable wireless access device (NAD), in order to operate in a restricted access and mobility management (RAMM) mode (304). The RAMM service limits usage of network resources, while enabling utilization for certain limited kinds of calls. The service may be used for eCall, in the case of motor vehicles (FIG. 1), for example, or for machine to machine communications and remote alarms (FIG. 6). The new subscription service may be used to avoid an eCall only MS being denied access to a network due to non-use of a prepaid (USIM) subscription (314).
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