Apparatus and methods for transmission of emergency call...

H - Electricity – 04 – L

Patent

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Details

H04L 29/06 (2006.01) H04W 4/22 (2009.01) H04M 1/725 (2006.01) H04M 3/51 (2006.01)

Patent

CA 2752582

Methods and apparatus for providing useful data in association with a high- priority call such as an emergency call. In one embodiment, the data comprises a data (e.g., an MSD or FSD) embedded within one or more real-time protocol packets such as RTP Control Protocol (RTCP) packets, that are interspersed within the voice or user data stream (carried in e.g., RTP packets) of an emergency call. Apparatus and methods are described for transmitting the data portion reliably from the initiating terminal (e.g., an in-vehicle system) to a Public Safety Answering Point (PSAP), by using the same transport connection as the user data.

L'invention porte sur des procédés et un appareil pour fournir des données utiles en association avec un appel à haute priorité tel qu'un appel d'urgence. Dans un mode de réalisation, les données comprennent des données (par exemple, un MSD ou FSD) incorporées dans un ou plusieurs paquets de protocole de transmission en temps réel (RTP) tels que des paquets de protocole de commande RTP (RTCP), qui sont intercalés dans le flux de voix ou de données d'utilisateur (transporté par exemple dans des paquets RTP) d'un appel d'urgence. L'invention porte sur un appareil et des procédés pour transmettre la partie données de façon fiable du terminal de départ (par exemple, un système embarqué) à un point de réponse de sécurité publique (PSAP), par utilisation de la même connexion de transport que les données d'utilisateur.

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