Private branch exchange system and method for control thereof
First Claim
1. A method for controlling a private branch exchange system including a private branch exchange and a plurality of extension phones, the private branch exchange receiving caller information through a communication line and storing the caller information as an incoming call log therein, the plurality of the extension phones being divided into a plurality of groups and the extension phones in a same group having a same incoming call group number, the method including the following steps of:
- when the private branch exchange receives a call for the incoming call group number through the communication line, transmitting an incoming call signal of the call to all of the extension phones in the group corresponding to the incoming call group number by the private branch exchange;
if none of the extension phones in the group corresponding to the incoming call group number have answered the call, causing all of the extension phones to display no answer message thereon; and
when the private branch exchange receives an incoming call log display request from at least one of the extension phones in the group corresponding to the incoming call group number, causing the at least one of the extension phones in the group corresponding to the incoming call group number to display the caller information received by the private branch exchange thereon through the communication line.
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Accused Products
Abstract
It is one objective of the present invention to provide a private branch exchange that can identify calls to be routed to an extension phone group.
A private branch exchange according to this invention comprises: a caller information detector for, when a call is received, obtaining caller information; a group incoming call table in which two or more extension numbers are correlated with an extension incoming call group number; and an incoming call group controller for, when a call received through the telephone line is for an extension incoming call group number, extracting from the group incoming call table extension numbers that are correlated with the extension incoming call group number and transmitting an incoming call signal to extension phones corresponding to the extension numbers, and also for storing, in a group incoming call log table, a caller number that is obtained by the caller information detector.
10 Citations
6 Claims
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1. A method for controlling a private branch exchange system including a private branch exchange and a plurality of extension phones, the private branch exchange receiving caller information through a communication line and storing the caller information as an incoming call log therein, the plurality of the extension phones being divided into a plurality of groups and the extension phones in a same group having a same incoming call group number, the method including the following steps of:
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when the private branch exchange receives a call for the incoming call group number through the communication line, transmitting an incoming call signal of the call to all of the extension phones in the group corresponding to the incoming call group number by the private branch exchange; if none of the extension phones in the group corresponding to the incoming call group number have answered the call, causing all of the extension phones to display no answer message thereon; and when the private branch exchange receives an incoming call log display request from at least one of the extension phones in the group corresponding to the incoming call group number, causing the at least one of the extension phones in the group corresponding to the incoming call group number to display the caller information received by the private branch exchange thereon through the communication line. - View Dependent Claims (2, 3)
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4. A private branch exchange system which has plurality of extension phones and manages connections for the plurality of extension phones, the private branch exchange comprising:
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a caller information detector configured to, when a call is received through a communication line, obtain caller information; a group incoming call log storage unit in which the caller information is correlated with an extension incoming call group number; a group incoming call table in which at least two extension numbers are correlated with the extension incoming call group number, a first display controller configured to control to display a no answer indication on a first display unit of each of the extension phones corresponding to the extension numbers correlated with the extension incoming call group number, and a controller configured to, when the call received through the communication line corresponds to the extension incoming call group number, extract the extension numbers correlated with the extension incoming call group number from the group incoming call table, transmit the call to the extension phones corresponding to the extension numbers correlated with the extension incoming call group number, and store the caller information of the call in group incoming call log storage unit, wherein; the first display controller controls to display the no answer indication on the first display unit of each of the extension phones corresponding to the extension numbers correlated with the extension incoming call group number, when none of the extension phones corresponding to the extension numbers correlated with the extension incoming call group number answers to the call. - View Dependent Claims (5, 6)
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Specification