Apparatus and method for providing music-on-hold service in key telephone system
AssigneeSamsung Electronics Co., Ltd.
InventorTAE-GYU LEE
Life of this patent
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Abstract
An apparatus and method for providing a music-on-hold service to an originating subscriber requesting a call connection to a busy terminating subscriber in a key telephone system, using an external music-on-hold source coupled to a previously selected central office line port of a central office line circuit to provide a pre-recorded melody.
Claims9
An apparatus for providing a music-on-hold service in a key telephone system, comprising:
- a central office line circuit for receiving an incoming call from an originating subscriber and for selectively reserving a central office line that is unused for forming a central office communication loop to provide said music-on-hold service;
- an external music-on-hold melody source having a pre-recorded messages therein coupled to said central office line circuit for providing said pre-recorded messages via said reserved central office line;
- and,
- a control unit for connecting said incoming call from said originating subscriber to said reserved central office line coupled to said external music-on-hold melody source when the central office line of a terminating subscriber is busy.
A method for providing a music-on-hold (MOH) service in a key telephone system coupled to an external music-on-hold service via a central office line port, the method comprising the steps of:
- (a) checking whether a central office line of a terminating subscriber is busy in response to an incoming call externally received from an originating subscriber via a central office line circuit;
- (b) determining whether said MOH service for said key telephone system has been set if it is determined at said step (a) that said central office line of said terminating subscriber is busy;
- and,
- (c) connecting said incoming call to a central office line port coupled to said external music-on-hold service, and transmitting a music-on-hold melody previously recorded if it is determined at said step (b) that said MOH service has been set.
Dependencies are inferred from the claim text.