Source note · SIP scanning and telephony denial of service
Twilio strongly recommends configuring user credentials on SIP trunks because IP ACLs alone do not protect against certain types of attack.
Checked 2026-09-25
It is highly recommended that you configure User Credentials. IP ACL's alone does not protect against certain types of attacks.
- Vendor
- Twilio
- Product
- Elastic SIP Trunking
- Subsystem
- Termination authentication
- Deployment
- multi-tenant
- Region
- not restricted
- Release range
- current as of 2026-09-25
- Checked
- 2026-09-25
Sources
- Elastic SIP Trunking — Twilio · tier 2 current vendor documentation · Termination Settings > Authentication
Cite this note
APA
WarmTransfer. (2026, September 25). SIP scanning and telephony denial of service: source note sip-scanning-tdos-twilio-recommends-credentials. WarmTransfer. https://warmtransfer.net/knowledge/claims/sip-scanning-tdos-twilio-recommends-credentials
BibTeX
@misc{warmtransfer-claim-sip-scanning-tdos-twilio-recommends-credentials,
title = {SIP scanning and telephony denial of service: source note sip-scanning-tdos-twilio-recommends-credentials},
author = {{WarmTransfer}},
year = {2026},
url = {https://warmtransfer.net/knowledge/claims/sip-scanning-tdos-twilio-recommends-credentials},
note = {Source note sip-scanning-tdos-twilio-recommends-credentials, checked 2026-09-25}
}