Internet protocol telephony for a mobile station on a packet data channel
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United States of America Patent
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-
Apr 24, 2001
Grant Date -
N/A
app pub date -
Dec 23, 1997
filing date -
Dec 23, 1997
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A method and apparatus are provided for effectuating voice communication between a mobile station and a mobile radio network. A gateway to the mobile radio network receives an incoming voice call for a destination mobile station and accesses information pertaining the status and location of the destination mobile station. A determination is made as to whether the destination mobile station is capable of operation in a voice mode using circuit-switched communications across a traffic channel. If the destination mobile station is operable in the voice mode, a circuit-switched communication on a traffic channel is established between the mobile radio network and the destination mobile station. Otherwise, the incoming voice call is routed to a voice gateway which converts the voice call to data packets and routes the data packets to the mobile station across an Internet Protocol communication network to a packet gateway of the mobile radio network. The packet gateway routes the call across a packet data channel of the mobile radio network to the destination mobile station using a packet data service.
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