Using voiceprint technology in CALEA surveillance

A media-analysis platform comprising:

• a communication interface;
• a processor;
• data storage comprising (i) at least one media-data profile, the media-data profile comprising a voice-data profile, wherein each profile is associated with a target of surveillance and (ii) program instructions executable by the processor to:
• receive at least one packet from a bearer element, wherein the at least one packet comprises media data, the media data comprising voice data, representing a copy of at least part of a real-time media session, the real-time media session comprising voice communication, wherein the bearer element is configured to (i) initially send to the media-analysis platform a copy of each of a plurality of real-time media sessions that traverse the bearer element and (ii) stop sending a copy of a particular session to the media-analysis platform in response to receiving an instruction from the media-analysis platform;
• responsive to receiving the at least one packet, compare the voice data to the at least one voice-data profile;
• determine whether the voice data matches any of the at least one voice-data profile;
• if the voice data does not match any of the at least one voice-data profile, responsively send an instruction to the bearer element to stop sending the copy of the media session to the media-analysis platform.

A method comprising:

• a bearer element initially sending to a media-analysis platform a copy of at least part of each of a plurality of real-time media sessions, each such real-time media session comprising voice communication, that traverse the bearer element, wherein the copy of the at least part of each real-time media session comprises media data associated with the at least part of the respective media session, wherein the media data comprises voice data;
• the bearer element receiving from the media-analysis platform an instruction to stop sending a copy of a particular media session to the media-analysis platform, wherein the instruction is associated with the media-analysis platform determining that the voice data of the particular media session does not match any of at least one voice-data profile maintained by the media-analysis platform, wherein each voice-data profile is associated with a target of surveillance;
• and
• responsive to receiving the instruction, the bearer element no longer sending the copy of the particular media session to the media-analysis platform.