Method and apparatus for telephone call sub-billing

H - Electricity – 04 – M

Patent

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H04M 15/12 (2006.01) H04M 15/10 (2006.01)

Patent

CA 2193276

A "breakout" of telecommunications toll calls on a per-station basis is providedto households or other telecommunications endpoints which have subscribed to only a us single analog telephone line. Subscribers wishing to avail themselves of such "station set billing" will have purchased and installed telephone stations sets which are adapted to transmit to the telecommunications service provider, during a call, e.g., at the start thereof, a signal carrying a code which identifies that station set. The subscriber, additionally, will have registered the station set's code, which may be marked on the bottom of the instrument, with the telecommunications service provider. Thus the service provider is able to identify which station set within the household a call is being made from or to which a collect call is being made. The telecommunications service provider can thus readily "tag" the toll charge for that call in the subscriber's monthly bill as having been made from, or billed to, a particular station set, hereby effectuating the inventive "station set billing" service. The station set may transmit the code at its own initiative. Alternatively, it may transmit the code in response to a query signal issued by the telecommunications service provider's equipment during call set-up. Preferably, the station set's code signal, as well as the query signal are of a type that cannot be heard by the human auditory system, such as a spread spectrum signal, thereby making the interchange of query and identifying signal imperceptible to the callers.

Système de « ventilation » d'appels interurbains par poste téléphonique pour des résidences ou d'autres utilisateurs des télécommunications qui n'ont qu'une ligne téléphonique analogique individuelle (us). Les abonnés qui désirent se prévaloir de ce système de facturation par poste auront acheté et installé des téléphones adaptés pour transmettre au fournisseur de services de télécommunications, pendant un appel, p. ex. en début d'appel, un signal porteur d'un code qui identifie le téléphone. L'abonné aura en outre enregistré auprès du fournisseur de services de télécommunications le code du téléphone, qui peut figurer dessous l'appareil. Ainsi, le fournisseur de services de télécommunications pourra identifier quel téléphone de la résidence est utilisé pour faire un appel ou pour recevoir un appel à frais virés, et facilement marquer les frais interurbains de cet appel sur la facture mensuelle de l'abonné comme imputables ou facturés à tel ou tel téléphone, ce qui constitue l'originalité du service de facturation « ventilée »par poste téléphonique. Le téléphone pourra transmettre le code spontanément ou en réponse à un signal d'interrogation émis pendant l'appel par l'équipement du fournisseur de services de télécommunications. De préférence, le signal code du téléphone, ainsi que le signal d'interrogation sont inaudibles, par ex. signal à étalement du spectre, ce qui rend l'échange de signaux d'interrogation et d'identification imperceptible aux appelants.

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