Communication system utilizing information received during a silent interval between ringing signals
First Claim
1. A communication system for switchably controlling connections between a plurality of external communication lines and one or more system extension loops which connect to the system;
- said system comprisingtable means for associating each of said plurality of lines with at least one extension loop of said system,means for detecting information in a silent interval between ringing signals of an incoming call received over a first one of said lines,means for storing said information in a call record established for said call prior to said call being answered,means responsive to a predetermined call condition at said system for sending at least a portion of said stored information as part of an output control signal sent over an extension loop, and whereinsaid system in response to a line identification signal accesses said table means to select at least one extension loop of said one or more extension loops which is to receive said control signal.
14 Assignments
0 Petitions
Accused Products
Abstract
A communication system detects special service information (e.g., calling party identification) during a silent interval between ringing signals on an incoming call and stores the information in a call record created for the call. In response to predetermined call conditions, this information is included as part of a control signal sent over an extension loop to a station terminal. Call features such as delayed ringing, hold, call transfers, line preselect and switch hook status are utilized to control where, when and if this information should be displayed at various station terminals.
-
Citations
21 Claims
-
1. A communication system for switchably controlling connections between a plurality of external communication lines and one or more system extension loops which connect to the system;
- said system comprising
table means for associating each of said plurality of lines with at least one extension loop of said system, means for detecting information in a silent interval between ringing signals of an incoming call received over a first one of said lines, means for storing said information in a call record established for said call prior to said call being answered, means responsive to a predetermined call condition at said system for sending at least a portion of said stored information as part of an output control signal sent over an extension loop, and wherein said system in response to a line identification signal accesses said table means to select at least one extension loop of said one or more extension loops which is to receive said control signal. - View Dependent Claims (2, 3, 4, 5, 6, 7, 9)
- said system comprising
-
8. A communication system for switchably controlling connections between a plurality of external communication lines and one or more system extension loops which connect to the system;
- said system comprising
means for detecting information in a silent interval between ringing signals of an incoming call received over a first one of said lines, means for storing said information in a call record established for said call prior to said call being answered, means responsive to a predetermined call condition at said system for sending at least a portion of said stored information as part of an output control signal sent over an extension loop, and wherein said call condition is an expiration of a delayed ring state established to delay the sending of a ring control signal, representing said ringing first line, over said extension loop.
- said system comprising
-
10. A method of operating a communication system for switchably controlling connections between a plurality of external communication lines and one or more system extension loops which connect thereto;
- said method comprising the steps of
detecting information in a silent interval between ringing signals of an incoming call received over a first one of said lines, storing said information in a call record established for said call prior to said call being answered, in response to a predetermined call condition at said system, sending at least a portion of said stored information as part of a control signal sent over an extension loop, and wherein said call condition is an expiration of a delayed ring state established to delay the sending of a ring control signal representing said ringing first line over said extension loops.
- said method comprising the steps of
-
11. A method of operating a communication system for switchably controlling connections between a plurality of external communication lines and one or more system extension loops which connect thereto;
- said method comprising the steps of
associating each of said plurality of lines with at least one extension loop of said system in a table means, detecting information in a silent interval between ringing signals of an incoming call received over a first one of said lines, storing said information in a call record established for said call prior to said call being answered, in response to a predetermined call condition at said system, sending at least a portion of said stored information as part of a control signal sent over an extension loop, and in response to a line identification signal, accessing said table means to select at least one extension loop of said one or more extension loops which is to receive said control signal. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18)
- said method comprising the steps of
-
19. A communication system, including a controller, for switchably controlling connections between a plurality of external communication lines and one or more station terminals which connect thereto over extension loops, said system comprising
at said controller, table means for associating each of said plurality of lines with at least one extension loop of said system, means for detecting information in a silent interval between ringing signals of an incoming call received over a first one of said lines, means for storing said information in a call record established for said call prior to said call being answered, means responsive to a predetermined call condition at said system for sending at least a portion of said stored information as part of an output control signal sent over an extension loop to a station terminal, and wherein said system, in response to a line identification signal, accesses said table means to select at least one extension loop of said one or more extension loops which is to receive said control signal, and said station terminal including means for receiving and displaying said information portion of a received output control signal.
Specification