Communications protocol for switching systems
AssigneeTelefonaktienbolaget L M Ericsson
InventorsRobert S. Clary, Lars T. Rymert
Life of this patent
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Abstract
In a switching network including a central system and at least one end point device connected to the central system, a protocol for communicating between the central and the at least one end point device includes a plurality of signals that may be transmitted from the end point device to the central system, and a plurality of signals that may be transmitted from the central system to the end point device.
Claims16
In a switching network including a central switching system and at least one end point device connected to said central switching system, said end point device characterized in part by being in one of a number of states at any one time, and such end point device further characterized by comprising structure maintaining an end point device state table, a protocol for communicating between said central switching system and said at least one end point device comprising:
- a plurality of signals for transmitting information from said end point device to said central switching system;
- and
- a plurality of signals for transmitting information from said central switching system to said end point device;
- wherein said central switching system maintains information regarding state of the end point device;
- and wherein one of said plurality of signals that may be transmitted from said central switching system to said end point device is a signal for informing said end point device of its state via modification of its state table.
A protocol for interconnecting a telecommunications switch and an intelligent peripheral device, which intelligent peripheral device is characterized by comprising structure for maintaining a state table therefor, said protocol comprising:
- at least one signal transmittable from said telecommunications switch to said device;
- and
- at least one signal transmittable from said device to said telecommunications switch, wherein said telecommunications switch maintains information regarding state of said intelligent peripheral device, and wherein said at least one signal transmittable from said telecommunication switch to said device is a signal for loading information regarding intelligent peripheral state in its state table.
Dependencies are inferred from the claim text.