Device for monitoring a switch
First Claim
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1. A switch sentry device, comprising:
- a digital telephony switch;
means for processing information;
means for simulating a call from the processing means to the switch;
means responsive to the call simulating means for simulating a primary ringing line from the switch to the processing means;
means responsive to the call simulating means for simulating an alternate ringing line from the switch to the processing means;
means for determining an inoperative condition of the switch;
means for determining priority in a plurality of alarms indicating a plurality of fault conditions; and
means for indicating a condition only of the most critical of the alarms in said priority of alarms.
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Abstract
A switch sentry device (22) having a digital telephony switch (SCX, 16), a device (24) for processing information, a device (24, 34) for simulating a call from the processing device (24) to the switch (SCX, 16), a device (SCX, 16) responsive to the call simulating device (24, 34) for simulating a primary ringing line (36) from the switch (SCX, 16) to the processing device (24), a device (SCX, 16) responsive to the call simulating device (24, 34) for simulation an alternate ringing line (38) from the switch (SCX, 16) to the processing device (24), and a device (24) for determining an inoperative condition of the switch (SCX, 16).
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Citations
25 Claims
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1. A switch sentry device, comprising:
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a digital telephony switch; means for processing information; means for simulating a call from the processing means to the switch; means responsive to the call simulating means for simulating a primary ringing line from the switch to the processing means; means responsive to the call simulating means for simulating an alternate ringing line from the switch to the processing means; means for determining an inoperative condition of the switch; means for determining priority in a plurality of alarms indicating a plurality of fault conditions; and means for indicating a condition only of the most critical of the alarms in said priority of alarms. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23)
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24. A diagnostic device, comprising:
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a digital telephony switch; a switch sentry device; means for simulating a call from the sentry device to the switch; means responsive to the call simulating means for simulating a primary ringing line from the switch to the sentry device; means responsive to the call simulating means for simulating an alternate ringing line from the switch to the sentry device; means for determining an inoperative condition of the switch; means for determining priority in a plurality of alarms indicating a plurality of fault conditions; and means for indicating a condition only of the most critical of the alarms in said priority of alarms. - View Dependent Claims (25)
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Specification