Method and apparatus for selectively suspending or activating a call waiting service
AssigneeFujitsu Limited
InventorTsuguhito Nishiara
Life of this patent
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Abstract
An exchange identifies a destination telephone number dialed by a subscriber, accesses a database access unit to determine whether the subscriber performs data communication or speech communication based on the identified destination telephone number, suspends a call waiting service when the subscriber performs data communication service and activates the call waiting service when the subscriber performs speech communication.
Claims7
A telephone switching method using a telephone switched network and provided with a call waiting service for producing an interrupt responsive to a call incoming to a first subscriber when the first subscriber is communicating with a second subscriber, comprising the steps of:
- identifying a destination number dialed by the first subscriber to originate a call;
- verifying if the identified destination number is registered for data communication and determining whether the first subscriber is performing one of data communication and voice communication depending on the results of said verifying step;
- and
- suspending the call waiting service when it is determined that the first subscriber is performing data communication, and activating the call waiting service when it is determined that the first subscriber is performing voice communication.
A telephone switching apparatus provided with a call waiting service for producing an interrupt responsive to a call incoming to a first subscriber when the first subscriber is communicating with a second subscriber, comprising:
- communication type identifying means identifying a destination number dialed by the first subscriber to originate a call and including verification means for verifying if the identified destination number is registered for data communication, said communication type identifying means determining whether the first subscriber is performing one of data communication and voice communication depending on the results obtained from said verification means;
- and
- interrupt service controlling means for suspending the call waiting service when it is determined that the first subscriber is performing data communication, and activating the call waiting service when it is determined that the first subscriber is performing voice communication.
A telephone switching apparatus provided with a call waiting service for producing an interrupt responsive to a call incoming to a first subscriber when the first subscriber is communicating with a second subscriber, comprising:
- communication type identifying means for identifying a destination number dialed by the first subscriber to originate a call, and determining whether the first subscriber is performing one of data communication and voice communication depending on the destination number identified;
- and
- interrupt service controlling means for suspending the call waiting service when it is determined that the first subscriber is performing data communication, and activating the call waiting service when it is determined that the first subscriber is performing voice communication,
- wherein said communication type identifying means comprises:
- a database for storing destination telephone numbers for access points of data communication;
- and
- database searching means for referring to said database so as to determine whether said destination telephone number dialed by the first subscriber is stored in said database, for determining that data communication is performed when it is determined that said database stores said destination telephone number, and for determining that speech communication is performed when it is determined that said database does not store said destination telephone number.
Dependencies are inferred from the claim text.