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US 6,990,077 B2Granted
User selectable overlap and enbloc dialing of ISDN line
AssigneeFluke Corporation
InventorsPaul H. Katz, Michael Kennedy
Life of this patent
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AssigneeFluke Corporation
InventorsPaul H. Katz, Michael Kennedy
Estimating the term…
An ISDN test set employs a user selectable dialing mechanism, that allows the test set user to select from multiple types of dialing—overlap dialing and enbloc dialing, through the use of a simplified functional dialing key set. The dialing key set, in combination with dialing software employed by the test set's supervisory control processor, provides the user with substantial ISDN dialing flexibility, while reducing interaction between the user/craftsperson and the test set, that minimizes dialing inaccuracies that often depend upon the skill and familiarity of the technician with ISDN communications. Enbloc redialing (of the most recently dialed number) or of a stored number in memory is provided only in ON-HOOK mode by the operation of a REDIAL or RECALL key. Otherwise (whenever OFF-HOOK) only overlap mode dialing is employed.
A method of placing a call from an integrated services digital network (ISDN) telecommunications device over a communication circuit comprising the steps of:
An integrated services digital network (ISDN) telecommunications device comprising an ISDN interface, and a supervisory control processor which is operative to cause said ISDN interface, when coupled to a communication circuit, to exchange, with a device coupled to a second location of said communication circuit, digital communication messages over an ISDN channel, and including a dialing mechanism that includes overlap mode ISDN dialing and enbloc mode ISDN dialing, and being operative, for an OFF-HOOK condition of said ISDN telecommunications device, to place a call using said overlap mode ISDN dialing, whereas for an ON-HOOK condition of said ISDN telecommunications device, to place a call using said enbloc mode ISDN dialing.
A method of determining whether a communication circuit is qualified for integrated services digital network (ISDN) signalling comprising the steps of:
Dependencies are inferred from the claim text.