Method and apparatus for enabling dual tone multi-frequency signal processing in the core voice over internet protocol network
AssigneeAT&T Intellectual Property II, L.P.
InventorsMarian Croak, Hossein Eslambolchi
Life of this patent
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Abstract
The invention provides a method and apparatus for enabling DTMF signal processing in the core VoIP network. More specifically, the present invention enables a VoIP network to recognize and respond to special DTMF signals entered by a user and initiate the appropriate service logic response to satisfy the user's service request.
Claims21
A method for processing a dual tone multi frequency signal in a voice over internet protocol communications network;
- comprising:
- receiving the dual tone multi frequency signal by the voice over internet protocol communications network;
- translating, by a network element of the voice over internet protocol communications network, the dual tone multi frequency signal into a service request command;
- embedding the service request command in a session initiation protocol signaling message;
- and
- invoking a server in the voice over internet protocol communications network to service the service request command.
An apparatus for processing a dual tone multi frequency signal in a voice over internet protocol communications network;
- comprising:
- means for receiving the dual tone multi frequency signal by the voice over internet protocol communications network;
- means for translating, deployed within the voice over internet protocol communications network, the dual tone multi frequency signal into a service request command;
- means for embedding the service request command in a session initiation protocol signaling message;
- and
- means for invoking a server in the voice over internet protocol communications network to service the service request command.
A computer-readable medium having stored thereon a plurality of instructions, the plurality of instructions including instructions which, when executed by a processor, cause the processor to perform a method for processing a dual tone multi frequency signal in a voice over internet protocol communications network;
- comprising:
- receiving the dual tone multi frequency signal by the voice over internet protocol communications network;
- translating, by a network element of the voice over internet protocol communications network, the dual tone multi frequency signal into a service request command;
- embedding the service request command in a session initiation protocol signaling message;
- and
- invoking a server in the voice over internet protocol communications network to service the service request command.
A system for processing a dual tone multi frequency signal in a voice over internet protocol communications network;
- comprising:
- a border element residing within the voice over internet protocol communications network for receiving the dual tone multi frequency signal by the voice over internet protocol communications network;
- where the border element translates the dual tone multi frequency signal into a service request command, and where the border element embeds the service request command in a session initiation protocol signaling message;
- and
- a call control element for receiving the session initiation protocol signaling message, where the call control element invokes a server in the voice over internet protocol communications network to service the service request command.
Dependencies are inferred from the claim text.