Gm Global Technolgoy Operations, Inc.

David A Adams

Sethu K Madhavan

Dwayne A Crocker

Ronald W Fraser

Russell A Patenaude

Ki Hak Yi

Andrew J MacDonald

Kevin R Krause

Aqueel Husain

A connection management system and method manages connections between a vehicle telematics unit and a call center. A connection is established between the vehicle telematics unit and the call center over a wireless network. A first service is provided to the vehicle telematics unit during which a request for a second service is recognized for the vehicle telematics unit. A connection between the vehicle telematics unit and the call center is provided in response to the request for the second service after completion of the first service. This can include maintaining the established connection to carry out the second service or initiating a new connection after the first one is terminated.

Connection management for a vehicle telematics unit

A method of establishing an alternate communication channel between a telematics unit and a central facility that includes determining that a vehicle telematics unit is unable to communicate data over a voice call using a voice channel; initiating a data call from the vehicle telematics unit to a central facility based on that determination; sending information identifying the vehicle telematics unit to the central facility over the data call; establishing a voice call from the central facility to verbally communicate with the vehicle telematics unit based on the information identifying the vehicle telematics unit; and communicating data between the central facility and vehicle telematics unit via short messaging services (SMS) messages using the voice call from the central facility.

Method of communicating voice and data transmissions for telematics applications

The invention provides a method of transitioning between voice and data communications with a mobile vehicle. A switch-to-voice command signal is sent from a call center modem pool to the mobile vehicle, and a vehicle switch-to-voice acknowledgement signal is received at the call center. A call from the call center modem pool is switched to a call center advisor in response to the vehicle switch-to-voice acknowledgement signal.

Method of transition between wireless voice and data transmissions

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Troy, MI, United States of America

David A Adams