Toll fraud, E911, recording, and QoS

Rooms

1. The toll-fraud class, stated defensively

   Four exposure classes, source restrictions, and caller-identity as a separate control.

2. Trusted addresses and source restrictions

   The IP address trusted list is per product page. CME and SRST do not share one list size.

3. Emergency calling, location, and the FCC page

   Service URN, location conveyance, and the FCC MLTS page. State PSAP rules are not invented here.

4. Disclosed recording with SIPREC

   RFC 7866 is the recording protocol. RFC 7865 is the metadata. Notice and retention are legal questions.

5. Voice, EF, and what the PHB does not design

   RFC 3246 defines the EF PHB. RFC 4594 maps telephony to EF. This lesson does not design a LAN.

6. Alarms that match the failure

   Alarm on OPTIONS, TLS expiry, 503, recording-session failure, and trusted-list rejects. Each alarm names its document.

7. One change in the window

   Freeze the baseline, change one variable, verify, and keep the previous snippet ready.

Ecosystem

SIP does not replace workforce management, quality monitoring, CRM, emergency policy, or a messaging registry. It is the session seam those systems hang from. Compliance notes on this page are educational and are not legal advice.

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