Telephone switching system with voice detection and answer supervision
First Claim
1. An answer detector for use with an automatic call distribution system having a bus with at least first and second control signals, address signals, PCM data stream and clock signal comprising:
- input signal means for receiving said first and second control signals, said input signal means connected to said bus;
address decode means for decoding said address signals, said address decode means connected to said bus;
data convert means for converting said PCM data stream from a serial format to a parallel format, said data convert means connected to said bus;
processor means for monitoring said PCM data stream, said processor means operatively connected to said input signal means, to said address decode means and to said data convert means, said processor means outputting a code signal indicative of tones and voice energy in said PCM data stream, said processor means responsive to said first and second control signals and utilizing said address signals to monitor said PCM data stream;
output signal means for transmitting at least first and second response signals to said automatic call distribution system, said output signal means connected to at least said processor means and to said bus.
9 Assignments
0 Petitions
Accused Products
Abstract
An answer detector receives first and second control signals from an automatic calling distribution system. The first and second control signals are latched for further use by the answer detector. An address decode circuit receives address signals from the automatic calling distribution system. Furthermore, a pulse code modulated (PCM) data stream and a clock signal is received from the automatic calling distribution system. The PCM data stream is converted from a serial format to a parallel format and held in a data latch.
A processor in the answer detector in response to the first and second control signals monitors the PCM data stream for tone and voice energy. Through this analysis made by the processor, the answer detector responds to any of seven conditions: ringback tone, voice, tritone, busy tone, reorder tone, dial tone and a no response status. The processor places the proper response in an output buffer which is transmitted by an output signalling circuit back to the automatic calling distribution system.
36 Citations
10 Claims
-
1. An answer detector for use with an automatic call distribution system having a bus with at least first and second control signals, address signals, PCM data stream and clock signal comprising:
-
input signal means for receiving said first and second control signals, said input signal means connected to said bus; address decode means for decoding said address signals, said address decode means connected to said bus; data convert means for converting said PCM data stream from a serial format to a parallel format, said data convert means connected to said bus; processor means for monitoring said PCM data stream, said processor means operatively connected to said input signal means, to said address decode means and to said data convert means, said processor means outputting a code signal indicative of tones and voice energy in said PCM data stream, said processor means responsive to said first and second control signals and utilizing said address signals to monitor said PCM data stream; output signal means for transmitting at least first and second response signals to said automatic call distribution system, said output signal means connected to at least said processor means and to said bus. - View Dependent Claims (2, 3, 4, 5)
-
-
6. A method of monitoring a telephonic PCM data stream for tone and voice energy and for use in an answer detector comprising:
-
(a) providing an enable signal to said answer detector to initialize the answer detector; (b) providing at least first and second control signals, address signals and PCM data stream to said answer detector; (c) seizing said answer detector; (d) identifying predetermined values of said first and second control signals; (e) connecting said answer detector to a trunk line; (f) detecting tone or voice energy in said PCM data stream; (g) transmitting on said trunk line at least a first and second predetermined response signal representative of said detected tone or voice energy; and (h) disconnecting said trunk line and placing said answer detector in an idle state and proceeding to step (b). - View Dependent Claims (7, 8, 9, 10)
-
Specification