I'm looking into the FCC ruling to require CALEA support for certain classes of VoIP providers, as upheld by the DC circuit court a couple of weeks ago [1]. The portion of VoIP that is covered by this order is pretty narrow (ie, you provide telephony-like voip services for $$ [read the specs for the real definition]), and the FCC is looking at narrowing it down further but has not done so yet. Meanwhile, the deadline for implementation -- May 14, 2007 -- is starting to get pretty close. The operational part of this subject, and the reason for this mail, is the implementation of the wiretap interface. Obviously there are going to be a range of implementation approaches, given that there are a wide variety of providers. I mean, big-switch users probably just enable a feature, but small providers that rely on IP PBX gear with FXO cards will have to do something specific. Are vendors stepping up to the plate? Did you even know about this? Off-list is fine, and I'll summarize if there's interest. Thanks [1] http://pacer.cadc.uscourts.gov/docs/common/opinions/200606/05-1404a.pdf -- Eric A. Hall http://www.ehsco.com/ Internet Core Protocols http://www.oreilly.com/catalog/coreprot/