Radisys Canada Ulc

Radisys Canada Inc.

Alvin Chubbs

Neil M Gunn

Adnan Saleem

Yong Xin

Jagtar Gill

Tim Woinoski

James Davidson

Serguei Smirnov

A method of conducting a lawful intercept of real time media packet traffic involves redirecting real time media packet streams between a caller and callee through a media server; replicating the media packet streams within the media server; modifying packet headers of the replicated packet streams; and directing the modified packet streams to at least one monitoring port.

Lawful interception of real time packet data

In Voice-over-IP or like systems, audio mixers are used for implanting conferencing applications for IP networks. In such systems, a problem exists as how to pass through user signal events, such a DTMF digits, in-band as well as out-of-band telephony events (RFC 2833/4733) because they are not handled well in such systems. In accordance with the invention, a signalling event in incoming audio packets or user signalling event received out-of-band is detected at one of the inputs. A meta-data representation of the signal event is attached to the audio and passed through the mixer for regeneration, as in-band or out-of-band telephony events, on the other side of the mixer.

Method of passing signal events through a voice over IP audio mixer device

In a media server for processing data packets, media server functions are implemented by a plurality of modules categorized by real-time response requirements.

Multimedia processing in parallel multi-core computation architectures

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Vancouver, Canada

Alvin Chubbs