Twilio strongly recommends configuring credentials on a termination trunk and says IP ACLs alone do not protect against certain types of attack.

Checked 2026-09-25

IP ACL's alone does not protect against certain types of attacks.
Vendor
Twilio
Product
Elastic SIP Trunking
Subsystem
authentication
Deployment
multi-tenant
Region
not restricted
Release range
current as of 2026-09-25
Checked
2026-09-25

Sources

Cite this note

APA

WarmTransfer. (2026, September 25). SIP trunk carrier turn-up and acceptance testing: source note sip-trunk-carrier-turn-up-twilio-creds-recommended. WarmTransfer. https://warmtransfer.net/knowledge/claims/sip-trunk-carrier-turn-up-twilio-creds-recommended

BibTeX

@misc{warmtransfer-claim-sip-trunk-carrier-turn-up-twilio-creds-recommended,
  title  = {SIP trunk carrier turn-up and acceptance testing: source note sip-trunk-carrier-turn-up-twilio-creds-recommended},
  author = {{WarmTransfer}},
  year   = {2026},
  url    = {https://warmtransfer.net/knowledge/claims/sip-trunk-carrier-turn-up-twilio-creds-recommended},
  note   = {Source note sip-trunk-carrier-turn-up-twilio-creds-recommended, checked 2026-09-25}
}

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