Claims
- 1. Apparatus for use in a communications system wherein data is communicated from a first location to at least one other location at various times via a facility connection which changes at different ones of said various times, said apparatus comprising
- means for transmitting a predetermined test signal from said first location to said other location via said facility connection at one of said various times; and
- means, responsive to an acknowledgment signal generated within each said other location and transmitted to said first location in response to said predetermined test signal, for determining whether said facility connection comprises a digital facility at said one of said various times, and said predetermined test signal is a pseudo-random sequence, which includes a first portion which is transmitted at a first rate and a second portion which is transmitted at a second rate.
- 2. The apparatus of claim 1 wherein said apparatus includes means for processing the data to be communicated from said first location to said second location subsequent to the receipt of said acknowledgment signal.
- 3. The apparatus of claim 2 wherein said apparatus further includes means, responsive to said acknowledgment signal received by said receiving means, for altering the processing of data provided by said processing means.
- 4. The apparatus of claim 3 wherein said altering means in response to said acknowledgment signal causes said processing means to process the data in one of several alternative modes.
- 5. The apparatus of claim 4 wherein the data to be communicated has values which vary with time and in one of the alternative modes the data to be communicated from said first location to said second location is processed in a manner wherein each data value is coupled through said facility connection and another of the alternative modes the data values to be communicated are altered prior to coupling to said facility connection.
- 6. The apparatus of claim 5 wherein said another of the alternative modes the data values to be communicated are transformed into another signal which is a digital representation of a modulated analog carder signal which, in turn, is representative of the data values.
- 7. The apparatus of claim 3 wherein said altering means varies the rate at which the data to be communicated is coupled to said facility connection.
- 8. The apparatus of claim 1 wherein said apparatus is disposed within a PBX.
- 9. A method for use in a communications system wherein data is communicated from a first location to at least one other location at various times via a facility connection which changes at different ones of said various times, said method comprising the steps of
- transmitting a predetermined test signal from said first location to said other location via said facility connection at one of said various times; and
- determining, in response to an acknowledgment signal generated within each said other location in response to said predetermined test signal and transmitted from each said other location, whether said facility connection comprises a digital facility at said one of said various times, and said predetermined test signal is a pseudorandom sequence.
- 10. Apparatus for use in a communications system wherein data is communicated from a first location to at least one other location at various times via a facility connection which changes at different ones of said various times, said apparatus comprising
- means for transmitting a predetermined test signal from said first location to said other location via said facility connection at one of said various times; and
- means, responsive to an acknowledgment signal generated within each said other location and transmitted from each said other location in response to said predetermined test signal, for determining whether said facility connection comprises a digital facility at said one of said various times, and said predetermined test signal includes first and second portions which are each transmitted at a different rate.
- 11. The apparatus of claim 10 wherein said predetermined test signal is pseudorandom sequence.
- 12. The apparatus of claim 10 wherein said apparatus is disposed within a PBX.
- 13. The apparatus of claim 10 wherein said apparatus includes means for processing the data to be communicated from said first location to said second location subsequent to the receipt of said acknowledgment signal.
- 14. The apparatus of claim 13 wherein said apparatus further includes means, responsive to said acknowledgment signal received by said receiving means, for altering the processing of data provided by said processing means.
- 15. The apparatus of claim 1 wherein said data is communicated at a clocked rate in response to said acknowledgment signal.
Parent Case Info
This application is a continuation of application Ser. No. 08/173,332, filed Dec. 23, 1993 and now abandoned.
US Referenced Citations (14)
Continuations (1)
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Number |
Date |
Country |
Parent |
173332 |
Dec 1993 |
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