Today Cox announced that it will use Verisign’s NetDiscovery service in its effort to support CALEA. This is a good development, not for the obvious reasons.
NetDiscovery is a back-end service – it interfaces between the service provider and LEA. The question is where will Cox tap the media? It has to do it in one of its network element, like CMTS. This will naturally put pressure on ASP’s like Vonage, who will be at a disadvantage. To offset this disadvantage, these service providers must be afforded equal access to the tapping point and in the same manner. This gives rise to the most natural solution to the CALEA problem: call control information is collected from the application service provider and the call content is collected from the access provider (if the former does not have natural access to it) with the coordination done by the LEA itself.
Posted by aswath at April 5, 2004 06:52 PM