Lucent Technologies Inc.

Alcatel-lucent USA Inc.

Joseph James Lichter

David B Smith

Richard P Ejzak

Stuart Mandel Garland

Ted Moulos

Michael Joseph Meyer

Carl William Smedberg, Jr

An apparatus in one example comprises a server component of a mobile switching center that causes a redirection of a portion of a new media path between a packet-switched portion of the mobile switching center and a circuit-switched portion of the mobile switching center.

Server component redirection of new media path portion between packet-switched and circuit-switched portions of mobile switching center

A method and apparatus for establishing a suppressed ringing connection between a server and customer premises equipment, wherein the server is connected to a first switch and the customer premises equipment is connected to a second switch, different from said first switch. The switch connected to the server has translation information identifying the trunk to the server as a server trunk. Signaling between the server, which is not connected to the Common Channel Signaling Network (CCS7), and the second switch is performed according to the protocols used for sending messages to a switch connected to the target customer premises equipment that is at the other end of the suppressed ringing connection. The first switch converts signals received from the server into a common channel signaling format for transmission to the second switch, serving the target CPE. The second switch then establishes a suppressed ringing connection to the target CPE. Alternatively, a dial-up connection can be used to connect the server to the first switch. Advantageously, these arrangements free the server from having to provide trunks to all switches connected to target CPEs. They make it possible, for example, for one server to serve CPEs throughout the countly via one, or a small number of switches.

Suppressed ringing connectivity

The system of the invention passes wireless caller location information through the common channel signaling network (CCSN) to the PSAP such that the PSAP can provide enhanced emergency services. The caller location information such as the latitude and longitude of the wireless device or the cell and cell sector from which a call is made is encoded in the ISUP (ISDN User Part) of the call set up message over the CCSN. The public switched network routes the call based on the called party number (CDPN) parameter to the appropriate selective router and the selective router routes the call to the appropriate PSAP based on the caller location. The caller location information is transmitted over an ISDN interface to the PSAP. The PSAP can then access additional caller information based on the CDPN parameter to provide enhanced emergency services. Thus, the system of the invention allows enhanced 9-1-1 service to be provided in wireless systems while utilizing existing wireless infrastructure and protocols.

Enhanced emergency service for ISDN based emergency services in a wireless telecommunications system

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Naperville, IL, United States of America

Joseph James Lichter