Method and system for call screening

H - Electricity – 04 – M

Patent

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Details

H04M 3/50 (2006.01) H04M 3/436 (2006.01) H04M 3/533 (2006.01) H04M 3/20 (2006.01) H04M 3/428 (2006.01) H04M 3/54 (2006.01) H04M 3/56 (2006.01) H04M 15/00 (2006.01) H04Q 7/00 (2006.01)

Patent

CA 2213365

A method and system are disclosed for providing call screening in conjunction with a variety of network-based call services. An exemplary method for providing a called party at a called party station with call screening includes: (a) forwarding a call to the called party station (CPS) to a voice mailbox so that a caller can leave a message for the called party; (b) initiating a simplex call to the CPS; and (c) bridging the call forwarded to the voice mailbox and the simplex call to the CPS so that the called party can hear the caller leaving a message for the CPS; (d) initiating a duplex call to the CPS in response to signaling received from the CPS; and (e) bridging the call forwarded to the voice mailbox and the duplex call so that the caller and the called party are in communication with one another. In one embodiment of the present invention, the step of initiating a simplex call includes the step of delivering a distinctive ring to the CPS indicating that the caller is leaving a message for the CPS. In another embodiment of the present invention, the step ofinitiating a simplex call includes the step of transmitting a call waiting indicator to the CPS. In yet another embodiment of the invention, the step of initiating a simplex call includes the step of transmitting a signal to the CPS indicating that the calling party station will pay for cellular charges associated with the call.

L'invention est constituée par une méthode et un système de filtrage d'appels en rapport avec divers services offerts sur un réseau. La concrétisation privilégiée de la méthode pour filtrer les appels au poste de l'abonné demandé comprend les opérations suivantes: a) transfert à une boîte vocale d'un appel transmis au poste d'un abonné demandé (PAD) pour permettre au demandeur de laisser un message à l'intention de l'abonné demandé; b) lancement d'un appel simplex au PAD; c) combinaison de l'appel transféré à la boîte vocale et de l'appel simplex au PAD de façon que l'abonné demandé puisse entendre le demandeur laisser un message pour le PAD; d) lancement d'un appel duplex au PAD en réponse à la signalisation reçue du PAD; et e) combinaison de l'appel transféré à la boîte vocale et de l'appel duplex de façon à mettre le demandeur et l'abonné demandé en communication l'un avec l'autre. Dans l'une des concrétisations de la présente invention, le lancement de l'appel simplex au PAD inclut la transmission d'un signal de sonnerie distinctif pour l'informer que le demandeur va laisser un message. Dans une autre concrétisation, le lancement de l'appel simplex au PAD inclut la transmission d'un indicateur de mise en attente. Dans une dernière concrétisation de l'invention, le lancement de l'appel simplex au PAD inclut la transmission d'un signal indiquant que le poste du demandeur va assumer les frais de téléphonie cellulaire associés à l'appel.

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