[Asterisk-biz] (Fwd) [ciscovoip] Special - FCC Mandates VoIP Wiretap Rules -

Wed Sep 28 17:45:39 MST 2005

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To:             	ciscovoip at yahoogroups.com
From:           	"talknettalk" <cross at gocross.com>
Date sent:      	Wed, 28 Sep 2005 19:30:49 -0000
Subject:        	[ciscovoip] Special - FCC Mandates VoIP Wiretap Rules - Special TECHtionary.com TECH-Tip Und

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The animated TECH-Tip tutorial available at 
http://www.techtionary.com

Summary

The FCC has determined that providers of broadband internet access are
not relieved of CALEA obligations.  That is, the FCC has ruled that
broadband internet access classified as an information service under
the Communications Act does not determine its classification for CALEA
purposes.  Up to this point ISPs were considered information services
not communications but already subject to a number of electronic
surveillance statutes that compel their cooperation with law
enforcement agencies.  The ruling also covers "managed voip" services
and rural providers as well.  Implementation of this requirement is
likely in 2007, however, like E911, voip providers are on notice to
get this done.

For the complete FCC Notice http://www.fcc.gov/FCC-05-153A1.pdf

Details

CALEA-Communications Assistance for Law Enforcement Act compliance is
a legal obligation imposed on all carriers covered by the statute. 
According to the FBI, "lawfully-authorized electronic surveillance is
considered to consist of both the interception of communications
content (commonly referred to as wire taps) and the acquisition of
dialing and signaling information used to identify the call (e.g.
DNIS-Dialed Number Information Service) through the use of pen
registers (lawful acquisition of certain outgoing, dialing, routing,
addressing or signaling information) and/or through the use of trap
and trace (source of a wire or electronic communications) devices."

What follows is the standard global legacy interface with the key
interfaces:

HI1-Handover Interface One - Administrative Information

HI2-Handover Interface Two - Intercept Related Information

HI3-Handover Interface Three - Content of Communications

LI1-Lawful Interception interface One - Interception procedures

Shown here is a model for interception of IP-Internet Protocol 
traffic.  Since this part of an ongoing Notice of Proposed 
Rulemaking by the FCC-Federal Communications Commission 
(www.fcc.org), a review of FCC documents is encouraged for the 
latest rules and regulations.  The FCC indicated "the broadband 
access service and ISP-Internet Service Providers may not be able to
easily isolate call-identifying information for VoIP-Voice over
Internet Protocol without examining the packet content."  While it is
understood that nearly every IP is examined in details for data type,
protocol, port, source/destination address, it may be a considerable
effort to retrieve digits dialed or DDE-Dialed Digit Extraction used
in the various methods used in the PSTN-Public Switched Telephone
Network such as inband signaling or SS7-Signaling System 7.

A new standardized approach has emerged for TTP-Trusted Third Party
service called network MS-Mediation Service (L1 Provider Premises) and
LEMF-Law Enforcement Monitoring Facility.  According to the FCC,
"individual carriers are free to choose any technical solution that
meets the assistance capability requirements of CALEA."  There are a
number of different approaches to this issue.   Internal, Adjunct and
Integrated concepts will be discussed next; however there may be many
other viable concepts.  The FCC requires that "all domestic
communicates be transmitted through U.S. earth stations or routes
through a POP-Point of Presence that includes a network switch or
router that is located in the U.S.  While other countries have adapted
CALEA-like regulations, there are many problems to be overcome for
international interception.

Background

The remainder of this tutorial is an introduction not an indepth
analysis of 911.  According to the National Emergency Number
Association, the main characteristic of E-911 is the capability of the
E-911 Tandem CO-Central Office to selectively route a 911 call
originated from any station (telephone number) in the E-911 service
area to the correct primary (controlling) PSAP-Public Service
Answering Point designated to serve the originating station's
location.  

About TECHtionary

TECHtionary.com (http://www.techtionary.com) is the World's First and
Largest Animated Library/Magazine on Technology - Web Hosting
Magazine's Editor's Choice for Technical Help. 

TECHtionary produces white papers, magazine articles, indepth 
product reviews, training tools and custom animations.  

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