System and method for transmitting messages to a telephone set through the subscriber's line in a telephone system
First Claim
1. In a telephone system, comprising a plurality of subscriber stations each provided with a subscriber terminal including a telephone set, a telephone transmission network, each of said subscriber stations being interconnectible to another of said subscriber stations via said transmission network, service signal generating means for generating and emitting service signals relating to the establishing of a telephone connection between two subscriber stations, and telephone line means connecting the output of said service signal generating means to said subscriber stations for transmitting said service signals to a subscriber station emitting a call for the establishment of a telephone connection with another subscriber station,a message transmitting system for transmitting messages to a subscriber station calling for the establishment of a telephone connection during the period of establishing said connection, said message transmitting system comprising message generator means for generating and emitting said messages, service signal transmitting circuit means, message transmitting circuit means, and a mixer having a first input connectible to said service signal generating means through said service signal transmitting circuit means and a second input connectible to said message generator means through said message transmitting circuit means, said mixer having an output connected to said telephone line means and said mixer, first and second inputs being simultaneously connectible to said service signal generating means and said message generator means.
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Accused Products
Abstract
A message transmitting system incorporated in a telephone system includes a device for generating service signals relating to the making of a telephone connection between one telephone set and another telephone set and a mixer with two inputs which are connected to the service signal generating device and to a message generating device, respectively. The output of the mixer being connected to the telephone line.
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Citations
30 Claims
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1. In a telephone system, comprising a plurality of subscriber stations each provided with a subscriber terminal including a telephone set, a telephone transmission network, each of said subscriber stations being interconnectible to another of said subscriber stations via said transmission network, service signal generating means for generating and emitting service signals relating to the establishing of a telephone connection between two subscriber stations, and telephone line means connecting the output of said service signal generating means to said subscriber stations for transmitting said service signals to a subscriber station emitting a call for the establishment of a telephone connection with another subscriber station,
a message transmitting system for transmitting messages to a subscriber station calling for the establishment of a telephone connection during the period of establishing said connection, said message transmitting system comprising message generator means for generating and emitting said messages, service signal transmitting circuit means, message transmitting circuit means, and a mixer having a first input connectible to said service signal generating means through said service signal transmitting circuit means and a second input connectible to said message generator means through said message transmitting circuit means, said mixer having an output connected to said telephone line means and said mixer, first and second inputs being simultaneously connectible to said service signal generating means and said message generator means.
Specification