CALEA compliance for service providers
What the statute actually asks of a carrier, which standards deliver it, and where the obligation stops. Written for the engineer who has just been handed the problem.
The obligation sits with you, not your vendor.
The Communications Assistance for Law Enforcement Act places the duty on the telecommunications carrier. A vendor can supply the mediation platform that makes the duty practical to discharge, and can build that platform to the handover standards, but the carrier remains the party that is answerable for whether a lawful order was met.
What makes that practical is the mediation layer. It has to speak the interfaces and record formats CALEA-defined information travels over, prove itself against the specific network elements you actually run, and keep working through every core upgrade and vendor change that follows.
What a covered carrier has to be able to do
Intercept the communications you carry
A covered carrier must be able to isolate the communications of a named subscriber, and only that subscriber, from everything else crossing the network.
Hand it over in a usable form
Content and call-identifying information must reach the law-enforcement agency in a format it can actually receive, over a secure path, without gaps.
Protect everyone who is not the target
The obligation is bounded. Traffic outside the order must not be delivered, and the carrier is responsible for that boundary.
Restrict and record who can do it
Interception has to be limited to authorized personnel, with a record of who activated what and under which authorization.
How the information actually travels
CALEA defines what has to be handed over. The ETSI and 3GPP families define how. ETSI TS 102 232-7 carries call-identifying information from the mobile circuit-switched domain as defined in ANSI/J-STD-025-B, which is why a platform built to the ETSI handover family is the practical route to delivering CALEA-defined information.
- ETSI TS 102 232 family
- Handover for IP delivery
- ETSI TS 102 232-7
- Mobile CS domain, per J-STD-025-B
- ETSI TS 101 671
- Handover interface specification
- 3GPP handover interfaces
- Mobile network delivery
- ANSI/J-STD-025
- The US industry standard CALEA references
Failure modes worth designing against
Over-delivery
Handing over more than the order covers is a compliance failure in the other direction, and one that surfaces in court rather than in an audit. Scope has to be enforced by the system, not by the person configuring it.
Silent gaps
An interface that drops records without alarming produces an incomplete handover that nobody notices until the agency asks why a window is missing. Keepalive and failure handling are compliance features, not conveniences.
Expiry that never fires
Orders end. If the only thing stopping collection is somebody remembering to switch it off, the network will eventually collect past its authority, and the record will show it.
Untraceable activation
If you cannot show who activated an intercept, under which order, at what time, then the security requirement is unmet regardless of how well the delivery worked.
Meet the obligation without rebuilding the network
InterceptPlus CSP mediates between the network you already operate and the delivery interfaces the agency expects. It is built to the ETSI and 3GPP handover families, and conformance is established per deployment against your named network elements, vendors and software versions rather than claimed as blanket coverage.
Availability
Lawful-intercept capability is supplied only to licensed communications service providers and vetted government agencies, subject to eligibility, end-use and export-control review. This page is general information about a regulatory obligation and is not legal advice on your specific obligations.