A mobile application gateway for connecting devices on a cellular network with individual networks, such as enterprise voice and data networks and/or residential networks. The effects of the present invention are far reaching in terms of transferring effective call control from the cellular network into the control of the individual network such as the enterprise, and enabling new business models for the purchase of cellular service from a public cellular carrier by an enterprise. The invention may consist of a primarily of core network and services components based on the IMS network architecture, and is backward compatible to support legacy systems in place in current telecom and data networks.

The present invention moves service control, including call control, for a user element from a cellular network to a multimedia subsystem (MS), such as the Internet Protocol (IP) Multimedia Subsystem (IMS). Call control is provided by the MS irrespective of whether the user element is using cellular or WLAN access for the call. Call control for originating and terminating calls in the CS or MS as well as transferring calls between a circuit-switched subsystem (CS) and MS is anchored at a continuity control function (CCF) in the MS. All call signaling for the call is passed through the CCF. The CCF is a service provided in the user element's home MS and anchors the user element's active CS calls and MS sessions to enable active roaming across the CS and MS.

A call routing system for use with a wireless telephone systems is disclosed. The system, which monitors the subscriber's current physical location, determines the device to which a call should be terminated, and routes the call. The device can be any IP telephone, including a cable television system adapted to IP telephony. The system routes calls without direct subscriber actions, without a second telephone number, regardless of the time of day and day of week. Various options can also apply to a call, determined by subscriber-established preferences, when specified criteria are met, or calls can be limited to/from specified telephone numbers. The system and method uses signaling techniques that will allow routing of the call, along with any authorization or restrictions, to be done remotely from the actual switching of the call. Call events are transmitted to the call routing system while the communications path of the call is held at the switching system awaiting call routing information. The identity of the subscriber is established using existing means that are used to authenticate the user. The wireless phone user does not have to enter any additional codes or identification to obtain access to the call routing system.

Methods and architectures for improving operation of 9-1-1 and other emergency services networks. Enriched data (e.g., text messages, videos, phase II location information, etc.) may be transmitted to a PSAP via a secondary communication channel (i.e., data), wherein the primary communication channel is a voice telephony trunk. Disclosed embodiments may increase the speed with which accurate location information is made available to improve call routing accuracy and decrease dispatch time. Some embodiments may also enable continued operation of legacy emergency services systems during and after transition to next generation systems.

A system that incorporates teachings of the present disclosure may include, for example, a communication device having a controller to retrieve from an address book a communication identifier for each of a plurality of participants, determine from the address book a conferencing type for each of the plurality of participants, and initiate according to the conference type and the communication identifier of each participant a Voice over Internet Protocol conference call directed to communication devices of the plurality of participants. Other embodiments are disclosed.

A method of operating a network server, such as a mobile application gateway, connect devices on a cellular or carrier network with individual networks, such as enterprise voice and data networks or residential networks. The effects of the present invention are far reaching in terms of transferring effective call control from the cellular network into the control of the individual network, such as the enterprise, and enabling new business models for the purchase of cellular service from a public cellular carrier by an enterprise.

A system and method for initiating communications between a first wireless device and a second wireless device. The method includes the steps of detecting the status of the first wireless device, notifying the second wireless device via a scrolling ticker message based on the detecting step and establishing a communication session between the first and second wireless devices. The detecting step includes generating an alert based on a predefined event. The system for establishing a communication path between a first mobile device and a second mobile device includes an IMS core, a presence server communicatively coupled to the IMS core and in communication with the first mobile device, a scrolling ticker server in communication with the presence server and with the second mobile device, wherein the presence server communicates availability of the first mobile device and the scrolling ticker notifies the second mobile device of the availability of the first mobile device.

The present invention discloses numerous implementations for IP-based call processing systems that can selectively control an outgoing call initiated by a source device to a destination device. The call processing system causes a Service Switching Point (SSP) associated with the source device to initiate a media connection between the IP-based call processing system and the source device. The call processing system further causes initiation of a call feature for the outgoing call using the media connection with the source device. The call feature may include a call restriction feature, a call feature for conveying an audio element to the source device, a call record feature and a call feature for conveying information to the source device. The call processing system further causes establishment of a media connection between the source and the destination devices.

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

A method of establishing a communication link between a mobile terminal of a wireless network and a subscriber of a network, such as an enterprise network, and/or a residential network.