Source note · SIP scanning and telephony denial of service
The FBI defines a TDoS attack as an attempt to make a telephone system unavailable to its intended users by preventing incoming and/or outgoing calls.
Checked 2026-09-25
- Vendor
- n
- Product
- n
- Subsystem
- Threat definition
- Deployment
- any
- Region
- us
- Release range
- advisory dated 2021-02-17
- Checked
- 2026-09-25
Sources
- Telephony Denial of Service Attacks Can Disrupt Emergency Call Center Operations — Federal Bureau of Investigation, Internet Crime Complaint Center · tier 1 standards and regulators · PSA I-021721-PSA, opening section
Cite this note
APA
WarmTransfer. (2026, September 25). SIP scanning and telephony denial of service: source note sip-scanning-tdos-ic3-definition. WarmTransfer. https://warmtransfer.net/knowledge/claims/sip-scanning-tdos-ic3-definition
BibTeX
@misc{warmtransfer-claim-sip-scanning-tdos-ic3-definition,
title = {SIP scanning and telephony denial of service: source note sip-scanning-tdos-ic3-definition},
author = {{WarmTransfer}},
year = {2026},
url = {https://warmtransfer.net/knowledge/claims/sip-scanning-tdos-ic3-definition},
note = {Source note sip-scanning-tdos-ic3-definition, checked 2026-09-25}
}