Testing user terminal status
First Claim
1. A network system to test user terminal status, the network system comprising:
- at least one user terminal adapted to transmit a status message in response to a Session Initiation Protocol (SIP)-based Options message; and
a soft switch adapted to;
transmit the Option message;
determine whether or not the status message has been received; and
recognize whether the at least one user terminal is in a Busy state or an Idle state based on a result of the determination.
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Accused Products
Abstract
A network system and method of testing the terminal status so as to acquire the link status of the wired/wireless terminals associated to the VoIP-based network includes at least one user terminal which transmits a status message in response to a SIP-based Options message and a soft switch which transmits the Option message, determines whether or not the status message has been received, and recognizes whether the user terminal is in a Busy state or an Idle state based on a result of the determination. Since the terminal status can be accurately determined, it is possible to process calls, manage the terminal, and fairly charge the utilization costs to improve the stability and QoS of the network system.
27 Citations
22 Claims
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1. A network system to test user terminal status, the network system comprising:
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at least one user terminal adapted to transmit a status message in response to a Session Initiation Protocol (SIP)-based Options message; and
a soft switch adapted to;
transmit the Option message;
determine whether or not the status message has been received; and
recognize whether the at least one user terminal is in a Busy state or an Idle state based on a result of the determination. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A method of testing a user terminal status in a network system, the method comprising:
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transmitting an Options message to a user terminal from the network system; and
determining whether or not a status message has been received from the user terminal in response to the Options message. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22)
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Specification