Ipc Systems, Inc.

Timothy Potts

Rajnish Jain

Aseem Bakshi

Daniel Raymond Elliott

Elias Koutikas

Leonidas P Papadopoulos

Systems, methods, and computer program products are provided for manual ring-down communication using Session Initiation Protocol (SIP). A first SIP user agent transmits a message to a second SIP user agent over an Internet Protocol (IP) network to establish a SIP session. The first SIP user agent determines that a signal key associated with a first communication device has been selected and transmits, to the second SIP user agent over the IP network, a start event message to cause a second communication device to activate an alert. The first SIP user agent determines that the signal key has been released and transmits over the IP network an end event message to deactivate the alert. The first SIP user agent transmits, to the second SIP user agent over the IP network, one or more subsequent INVITE messages at a predetermined repetition rate to refresh the SIP session.

Systems, methods, and computer program products for providing a manual ring-down communication line using session initiation protocol

Systems, methods, apparatus and computer program products are provided for sharing a resource including a subscription engine configured to subscribe to a first turret system to share the resource, a state change engine configured to receive a state change notification corresponding to the resource, from the turret system, and a failover engine configured to invite the turret system to initiate a connection to the resource.

Systems, methods, apparatus and computer program products for networking trading turret systems using SIP

Systems, methods, and computer program products are provided for controlling calls and monitoring resource status for turret systems. A SIP message including at least one of a header field and an event package is received from a SIP user agent over a communication network. The header field includes a first parameter corresponding to a first call feature and the event package includes a second parameter corresponding to a second call feature. At least one of the first call feature and the second call feature is implemented by the softswitch or a SIP-enabled turret in response to the receiving.

Session initiation protocol extensions for call control and resource status monitoring in turrets and turret switching systems

Systems, methods, apparatus and computer program products are provided for sharing one or more resources across a turret system and a telephone exchange including an agent. The agent is configured to register into the telephone exchange as a predetermined device and to receive a state change notification of a resource from at least one of the telephone exchange and the turret system. Receipt of the state change notification causes the agent to change a state of a corresponding resource.

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East Haven, CT, United States of America

Timothy Potts