The present disclosure discloses a system and a method for automatic call synchronization. When a mobile terminal receives a called signal from a calling mobile terminal and determines that an automatic call synchronization function is enabled by itself, the mobile terminal transmits, to a wireless signal transponder, a call synchronization request which carries identification information and call information of the mobile terminal; a mode recognition unit which is connected to the wireless signal transponder performs an authentication on the mobile terminal according to the identification information of the mobile terminal; and transmits a call access request which carries the identification information and the call information of the mobile terminal to the fixed terminal via the wireless signal transponder, after the authentication on the mobile terminal is passed.

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

In a call forwarding system, a management apparatus of the call forwarding system determines service terminals capable of near field wireless communication within a reception range of near field wireless communication, generates a terminal list, and receives a call event message reporting the receipt of a call from a reference terminal. The management apparatus may transmit a call report message including the terminal list to the reference terminal and the service terminals. The management apparatus may forward the call initially received by the reference terminal to a terminal which transmitted a receipt request message by transmitting a call forwarding request message to the reference terminal. The management apparatus may transmit, to the reference terminal and the service terminals, a receipt report message reporting the call was forwarded. According to a change receipt message or upon non-receipt by an intended terminal, the call may be reforwarded to another terminal.

A system, method and computer-readable medium for allowing the use of an alternative numbering plan for delivering short messages to mobile subscribers using the public mobile telephone network is provided. Users of an enterprise or other closed networks as well as users that are not part of a closed network may send short messages destined to members of an enterprise or closed network from their mobile or other devices associated with their subscription using an alternative enterprise directory number, such as the office number, instead of the mobile number, such that the alternative number will be presented at the destination device as the originating number. The recipient may respond to the message by addressing the response to the enterprise or closed network number, and the response may be delivered to the originator's mobile or other device associated with their subscription.

The present disclosure generally relates to wireless communication systems, more particularly to systems and methods for providing Fixed Mobile Convergence (FMC) service. System receives contact number/short code of first user dialed by second user, and establishes connection between BTAS and IMS server, when second user dials mobile number. Further, system invokes FMC create/update service to trigger modification of IFC service chaining data in IMS core network. Furthermore, system converts short code and transmits invite request messages to IMS core network and triggers ringing mode on mobile/fixed line device. In response to conversion, system transmit invite request messages to IMS core network of mobile number link to fixed line, and in response to transmission, system triggers ringing mode on mobile device and fixed line device, to establish call. Additionally, system establishes call between mobile device and fixed line device of second user, and fixed line/mobile device of first user, respectively.

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.

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 method and arrangement is provided which allows a PC or other client device to be used to communicate with third parties through a mobile communication device when a user and the mobile communication device are not in the vicinity of one another. The arrangement allows the user to control operation of the mobile communication device over a WLAN so that the user can send or receive messages such as voice and text messages to a remote party from the client device through the mobile communication device over the WLAN and the mobile communication network employed by the mobile device.

The use of devices, such as Fixed Mobile Convergence (FMC) devices, enables a user on a call to have the connection seamlessly transition from one network to another. However, a call that is disconnected, either pre-answer or post-answer, leaves the calling party without information as to why the call was disconnected. Herein, systems and signaling methods are provided whereby a reason for a disconnect can be created and passed to the calling party, such as in a text message, to inform the caller of the disconnect reason. Additionally, the reason may be provided to the called party's voicemail. The call server may then connect the calling party to the voicemail and, with the reason code, the voicemail server is able to announce the reason for the disconnect and provide the calling party the opportunity to leave a message for the called party. The called party, when available, may then be presented with the voicemail.

An automatic call synchronization system and method, in which a mobile terminal (101) transmits, when receiving an incoming calling signal and determining that an automatic call synchronization function is turn on, to a wireless signal transponder (104) a call synchronization request carrying the identification information of the mobile terminal (101) and the call information; the pattern recognizer (103), which is connected with the wireless signal transponder (104), authenticates the mobile terminal (101) according to the identification information of the mobile terminal (101), and transmits to a fixed terminal (102) a call access request carrying the identification information of the mobile terminal (101) and the call information through the wireless signal transponder (104) after the authentication is successful; the fixed terminal (102) calls the user of the mobile terminal (101) according to the identification information and the call information, and transmits, when the call is answered by the user using the fixed terminal (102), to the wireless signal transponder (104) a call access response and implements the conversation through a fixed phone operation network matched with the fixed terminal (102). In this way, the call charge may be saved, and automatically performing the call synchronization has flexibility and convenience, thus bringing convenience to the user.