Siemens Information & Communication Networks, Inc.

Nokia Technologies Oy

Nokia Solutions and Networks Oy

Nokia Siemens Networks Gmbh & Co Kg

Siemens Stromberg-Carlson

Nagaraja Rao

Derek J Underwood

Curt C Wong

Girish Kumar

Alan Jette

Ejaz Shah

Wolfgang Buecker

Ludger Schlicht

Raymond Jong-A-Kiem

Derek Underwood

According to an example aspect of the present invention, there is provided an apparatus comprising at least one processor; and at least one memory including computer program code; the at least one memory and the computer program code configured to, with the at least one processor, cause the apparatus at least to function as a point of interception in an application server or border control function of a communication network, receive an incoming protocol message requesting initiation of a call, transmit an outgoing protocol message to advance initiation of the call, and receive a cryptographic token comprising a cryptographically signed identity of a caller initiating the call, and transmit a lawful interception message comprising information on the call to a lawful interception party as a response to at least one trigger being fulfilled.

Lawful interception of redirected calls

In a service provider network of a given communication system configured to support lawful interception functionality, one or more service-based interfaces are provisioned to enable interaction between one or more lawful interception-specific elements and one or more intercepting control elements. In one or more further implementations, methods provide for provisioning an interworking function specific for lawful interception functionality. The interworking function can be configured to support both service-based interfaces and point-to-point interfaces across a control plane and/or a user plane of the service provider network, as needed.

Lawful interception using service-based interfaces in communication systems

Various communication systems may benefit from the appropriate provision of location information. For example, certain wireless communication systems may benefit from the transmission of location information to devices along with wireless emergency alert messages using cell broadcast. A method can include receiving, at a user equipment, coordinates for an alert area for a wireless emergency alert. The method can also include determining, at the user equipment, whether the user equipment is within the alert area based on the coordinates. The method can further include processing the wireless emergency alert at the user equipment in accordance with the determination.

Transmission of location information to devices along with wireless emergency alert messages using cell broadcast

Systems, methods, and apparatuses for correlating intercept related information (IRI) with call content (CC) for S8HR lawful interception are provided. The method may include generating at a network entity a correlation identifier. The method may also include adding the correlation identifier to a session initiation protocol message. In addition, the method may include delivering the session initiation protocol message including the correlation identifier from the network entity to another network entity.

Methods and apparatuses for correlating intercept related information with call content

Systems, methods, apparatuses, and computer program products for supporting wireless emergency alert messages sent to mobile devices through radio access networks are provided. One method may include utilizing a binary value of 0000 as an update number in wireless emergency alert messages that have short text, utilizing a binary value of 0001 as the update number in wireless emergency alert messages that have long text, broadcasting the short text wireless emergency alert message to mobile devices on a second generation or third generation (2G/3G) network, and broadcasting the long text wireless emergency alert message to mobile devices on a long term evolution (LTE) network.

Methods and apparatuses for supporting wireless emergency alert messages

Certain embodiments of the invention generally relate to lawful interception of communications for IP Multimedia System-based (IMS-based) voice over IP (VoIP). For example, some embodiments relate to interception of communications including interception for encrypted, transcoded media. A method may include identifying a network node that provides call content interception. The method may also include determining a codec type used at a location of the call content interception at the network node. The method may further include sending a matched codec of the codec type used at the location of the call content interception at the network node to a delivery function in the communications network.

Interception for encrypted, transcoded media

A method is used to intercept call contents for provision of the contents to a monitoring authority for example the police or security services. The method identifies a network device in a bearer path to act as an intercept access point. This device is then instructed to copy the contents and to forward them to a collection node for inspection by the authority.

Method and apparatus for call content interception within a communications network

By selecting access points specific to the various components of call-content of a call, a monitoring agency is ensured of obtaining the call-content of each participant in telephone call irrespective of call transfers and network reconfiguration. Devices in the telecommunications system such as network devices can provide appropriate access. Examples of suitable network devices may include gateway, an access gateways, trunk gateways, portals, ATM switches, routers, and border elements.

Call-content determinative selection of interception access points in a soft switch controlled network

A method for providing automatic restoration of network access for user lines within a communication system. The user lines interface with groups of transmission lines that include dedicated transmission lines which are connected to the user lines, idle transmission lines and reserved transmission lines. The method includes steps for making a number of transmission lines among the groups of transmission lines available for user lines which have a dedicated transmission line in a group of transmission lines that fails and for coupling each of such user lines to a respective available transmission line. The method may also include steps for delaying the coupling of such user lines if a sufficient number of transmission lines are not available.

Method of providing continual network access for subscriber communication lines

A device for enabling automatic restoration of network access for user lines within a communication system. The user lines interface with groups of transmission lines that include dedicated transmission lines which are connected to the user lines, idle transmission lines and reserved transmission lines. The device includes a line manager that makes a number of transmission lines among the groups of transmission lines available for user lines which have a dedicated transmission line in a group of transmission lines that fails and a reprovisioning element that couples each of such user lines to a respective available transmission line. The device may also include a monitor that delays the coupling of such user lines if a sufficient number of transmission lines are not available.

Reprovisioning monitor

A method for managing transmission lines within a communication system which enables the automatic restoration of network access for user lines. The communication system includes user lines interfaced with groups of transmission lines and each group of transmission lines includes dedicated transmission lines which are connected to the user lines, idle transmission lines and reserved transmission lines. The method makes a number of idle transmission lines among the groups of transmission lines available for coupling by user lines which have a dedicated transmission line in a group of transmission lines that fails. The method determines the minimum number of transmission lines to be reserved by a comparison of the numbers of certain types of transmission lines in the different groups.

Method of managing digital signal carrying facilities

A digital loop carrier system in a communications network that provides automatic restoration of network access for user lines in the event of a failure. The system includes a plurality of user lines and groups of transmission lines interfaced with the user lines. Each group of transmission lines includes dedicated transmission lines which are connected to the user lines, idle transmission lines and reserved transmission lines. The system also includes a reprovisioning monitor that makes a number of transmission lines among the groups of transmission lines available for user lines which have a dedicated transmission line in a group of transmission lines that fails and that couples each of such user lines to a respective available transmission line. The monitor may delay the coupling of such user lines if a sufficient number of transmission lines are not available.

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Boca Raton, FL, United States of America

Nagaraja Rao