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AssigneeAT&T Corp.
InventorMenachem T. Ardon
Estimating the term…
A telecommunication network having a switching system connected to a called station by a line that provides notification to a called party of information relating to an incoming call. This information generally consists of the called number, but may also include an extension or other code. The called party identification is delivered to the called telephone station set during the silent period after ringing, or, advantageously, before ringing starts. A signal (e.g., FSK) is sent to the called telephone station set shortly before the ringing signal is sent to the called station. A converter at the customer premises receives the FSK signal and demodulates it. A control unit connected to the converter then causes the called DN to be displayed, may cause a distinctive ring to be made, or take other action depending upon its program.
In a telecommunications network having a switching system directly connected to a called station at a customer premises by one line, wherein said called station includes an audible signaling device, said customer premises also having a converter connected to said one line, wherein multiple directory numbers are assigned to said one line at said switching system, a method for identifying at said customer premises which one of said multiple directory numbers is being called, said method comprising the steps of:
A terminating arrangement having a single line connecting a plurality of terminal units to a switching system, each of said terminal units having a unique directory number, said switching system being responsive to an incoming call comprising a called directory number of one of said plurality of terminal units for setting up a call to said one line and sending signals to said terminal units representative of said called directory number as a terminating called line identification (TCLID) prior to sending a ringing signal on said one line, each of said terminal units comprising:
A connection device for connecting a terminal unit to a switching system, said terminal unit connected to said connection device, and said connection device connected to said switching system by a single line having a plurality of directory numbers assigned thereto, said terminal unit having been assigned one of said plurality of directory numbers, said switching system being responsive to an incoming call comprising said one of said plurality of directory numbers for connecting said incoming call to said line and sending signals representative of said one directory number as a terminating called line identification (TCLID) to said line prior to sending a ringing signal on said line, said connection device comprising:
In a telephone network comprising a plurality of interconnected switching systems, a method for alerting one of a plurality of telephones on a party line connected to one of said plurality of switching systems, wherein each of said plurality of telephones has a unique directory number, said method comprising the steps of:
Dependencies are inferred from the claim text.