Caller ID Spoofing: What Telecom Networks Miss

A Live Velona Webinar – NOW COMPLETE!

Thursday 18 June 2026
14:00–14:30 BST (British Summer Time / Ireland & UK)
20:00–20:30 BST (British Summer Time / Ireland & UK)  – Live Repeat
Live Webinar | Zoom

Learn how Caller ID spoofing (aka CLI spoofing) vulnerabilities are tested, where Telecoms networks still fail, and what Operators need to validate.

Table Of Contents

  • Background to how Caller ID spoofing attacks work
  • Protections available to Operators
  • Why trust in Caller ID matters
  • Why controls fail across interconnects
  • Caller ID spoofing is not just about fraud:
    • Telephony Denial of Service (T-DoS)
    • Cyber-Warfare
    • Cyber-Warfare simulation
  • What proper testing includes
  • What a top-level test plan looks like
  • The different types of Caller IDs that require testing
  • Why the Caller ID test platform should have a direct interconnect to the Operator as well as via multiple PSTN interconnects & the benefits of both types of testing
  • The value of capturing traces for each test
  • Anonymised findings from live testing on Operator networks
    • What Caller ID spoofing protections are still being bypassed
    • Which Specific Tests still return a FAIL result
    • Things to consider when testing
    • Difficult scenarios & what to do about them
  • Overview of Velona’s Caller ID Spoofing Testing functionality:
    • Fixed line
    • Mobile
    • Interconnects
  • Onboarding rules when delivering Caller ID Spoofing Testing

Who Should Attend

  • Telecom fraud & Security teams
  • Telecom Threat Management teams
  • VoIP/SIP/IMS Engineers & Architects
  • Network security teams
  • Interconnect specialists
  • Telecom Regulators

Contact us here for an abridged copy of the Webinar!

Learn how Caller ID spoofing works, where networks fail, and how to test your SIP infrastructure.

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