Systems and methods for controlling communication systems for the hearing impaired are disclosed. A portable communication device requests control over a plurality of communication devices. The portable communication device connects to and controls the plurality of communication devices. The portable communication device includes a user interface that enables a user to transfer a call from a first communication device to a second communication device.

A system, server, and method of DTMF detection in a VoIP network.

A method is presented comprising transmitting, from an application computer communicably connected to a call controller which is connected to a data network, packetized messages indicative of telephone calls in progress at an endpoint of the data network, or indicative of such endpoint, and transmitting, from the call controller to the application computer, packetized messages indicative of a variety of information contained in, or relevant to, the telephone calls so as to process such information for a variety of applications. Apparatus to implement the method is also presented.

A method includes sending, by a first device, a first message to a second device, sending a third message to the second device, where the first message includes information about at least one media capture capability supported by the first device, and at least one first association identifier, the third message includes at least one configuration item supported by the first device and at least one second association identifier, and the at least one first association identifier corresponds to the at least one second association identifier in a one-to-one manner, and receiving, a second message and a fourth message sent by the second device, where the second message includes at least one media capture capability that is selected by the second device according to the first message and the third message, and at least one third association identifier corresponding to the at least one media capture capability.

Disclosed are a method and device for scheduling a protocol stack in a telepresence system. The scheduling method includes: a telepresence endpoint acquiring a first state of an H.323 protocol stack and a second state of a third-party protocol stack, herein, the third-party protocol stack is used for performing interaction and negotiation on new characteristic parameters of the telepresence system, and the new characteristic parameters are different from contents for performing capability negotiation through the H.323 protocol stack in the telepresence system; the telepresence endpoint scheduling the H.323 protocol stack and/or the third-party protocol stack to execute a corresponding internal processing action according to a preset scheduling rule based on the first state and/or second state.

A system for optimizing response time to events or representations thereof waiting in a queue has a first server having access to the queue; a software application running on the first server; and a second server accessible from the first server, the second server containing rules governing the optimization. In a preferred embodiment, the software application at least periodically accesses the queue and parses certain ones of events or tokens in the queue and compares the parsed results against rules accessed from the second server in order to determine a measure of disposal time for each parsed event wherein if the determined measure is sufficiently low for one or more of the parsed events, those one or more events are modified to a reflect a higher priority state than originally assigned enabling faster treatment of those events resulting in relief from those events to the queue system load.

A method of control, by a piece of management equipment of a first telecommunication domain, of the authenticity of at least one relationship datum relating to the initiator of a communication and indicated in a message for establishing the communication originating from a second telecommunication domain and destined for the first telecommunication domain. The method includes, upon receipt of the message by the management equipment, extracting the at least one relationship datum from the message; searching for the at least one relationship datum in at least one database of the relationship data associated with the first domain, and rejecting the communication when an occurrence of the at least one relationship datum is found in the database.

A conference handling system for an enterprise is provided. The conference handling system includes a status determining module for determining a status of a conference bridge. The conference handling system further includes a conferee routing module for routing a conferee into a session comprising an active session and a waiting session, based on the status of the conference bridge, the conferee routing module further determining a contextual status of the active session. The conference handling system further includes a conferee serving module for providing services to the conferee into the waiting session based on the contextual status of the active session. The conference handling system further includes a conferee inviting module for adding additional conferees with a specific profile in the waiting session and the active session based on absence of a conferee having a similar profile.

A video telecommunication connection is established via a landline telecommunications network and an IP multimedia subsystem telecommunications network using a media gateway control function of at least one Internet multimedia-media gateway device in the IP multimedia subsystem telecommunications network. An H.223 multiplex level usable for a telecommunication connection is exposed to an H.223 protocol negotiation, in carrying out an H.245 protocol negotiations for setting up the H.223 protocol negotiations connection for a telecommunication connection. A media gateway control function device is informed when the H.223 logic channels are open by H.245 signaling, thereby enabling the Internet multimedia-media gateway device of the IP multimedia subsystem telecommunications network to carry out at least part of the setup.

Clearinghouse services architectures that support the use of end user devices, such as personal computers, Internet Protocol (IP) phones, cable multimedia terminal adapters, and residential gateways, in an Internet telephony system. The innovative architectures include a proxy-based system model, a direct communication model, and a hybrid proxy/direct communication model. A user can operate an intelligent end user device. i.e., a device running a client program with knowledge of the architecture particulars, to access a clearinghouse service on an IP network. This enables the user to communicate a telephony call over the IP network and via the combination of a terminating gateway identified by the clearinghouse service and the Public Switched Telephone Network.