Private branch exchange (PBX) system, private branch exchange, and method of communication using the same PBX system
AssigneeMatsushita Electric Industrial Co., Ltd.
InventorYukichi Tatsumi
Life of this patent
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Abstract
A private branch exchange (PBX) system includes plural extension telephones divided into extension groups, and a PBX which sends information about one of the extension group to a caller. Plural extension interfaces (I/Fs) coupling the extension telephones to the PBX are divided into groups. The PBX calls each of the extension telephones coupled to all the extension I/Fs of the extension groups corresponding to a call-in signal. In the PBX, a memory stores text data about the extension groups. A controller sends the text data about the extension group to a caller's telephone responsive to the call-in signal. The information can be thus displayed on an extension telephone or an outside-line telephone of the caller.
Claims22
A private branch exchange (PBX) system comprising:
- (a) an extension telephone;
- and
- (b) a PBX including:
- (b-1) a group number memory for storing an extension number of said extension telephone and a group number corresponding to the extension number;
- (b-2) a group number detector for detecting the group number corresponding to a call-in signal;
- (b-3) a request-signal generator for sending an arrival-request signal to an extension telephone having an extension number corresponding to the group number detected,
- (c) a memory for storing text data corresponding to the group member;
- and
- (d) a transmitter for transmitting information saved in said group number memory to a telephone, which has sent the call signal, when said group number detector detects the group number,
- wherein when said extension telephone receives the request signal, said extension telephone indicates the receipt of the request signal.
A private branch exchange (PBX) comprising:
- (a) a group number memory for storing an extension number and a group number of a group, to which the extension number belongs, associated with the extension number;
- (b) a group number detector for detecting the group number corresponding to a call-in signal;
- (c) a first memory for storing text data regarding the extension group;
- and
- (d) a controller for controlling said PBX, so that the text data is sent to a caller when the call-in signal to the extension group is received.
A private branch exchange (PBX) system comprising:
- (a) a PBX, including an outside-line interface (I/F) and a plurality of extension I/Fs, for setting a call-in group which includes a plurality of extensions;
- and
- (b) an extension telephone coupled to the plurality of extension I/Fs and including:
- (b-1) a plurality of function buttons where functions can be assigned;
- (b-2) indicators corresponding to respective said plurality of function buttons, wherein the call-in group is set to one of said function buttons,
- when a call-in arrives at the call-in group, the extension telephone belonging to the call-in group indicates the call-in arrival at one of said indicators of one of said function buttons, the one button (group button) being associated with the call-in group,
- at least one of a telephone number and a name of the call-in group is sent to a caller,
- when a call is placed to one of said extension and an outside-line by depressing the group button, at least one of the telephone number and the name of the call-in group is sent to the caller.
A method of communication using a private branch exchange (PBX) system which comprises (i) a PBX in which a plurality of call-in groups having a plurality of extension telephones can be set, (ii) a plurality of function buttons in which functions can be registered, and (iii) an extension telephone having indicators corresponding to said plurality of function buttons, said method comprising the steps of:
- (a) in the extension telephone, sending an instruction of placing a call from a group in response to a detection of depressing a function button (group button) associated with the call-in group;
- (b) in the PBX, receiving the instruction of placing the call from the group;
- (c) in the PBX, detecting a destination telephone number which is input from the extension telephone;
- (d) investigating whether or not the destination belongs to an extension line or an outside-line;
- and
- (e) sending information including a direct-dialing number of the call-in group as a caller's information to the destination on the outside-line when the destination belongs to the outside-line, and sending information including a group name to the destination on the extension line when the destination belongs to the extension line.
Dependencies are inferred from the claim text.