Several cloud trunk services let IP allow-listing and digest credentials be layered rather than chosen between (Twilio enforces both when both are set; Chime Voice Connector and Genesys external trunks expose both), so 'registration versus IP' is not strictly a binary choice.
inferred · Checked 2026-10-02
- Vendor
- not restricted
- Product
- not restricted
- Subsystem
- model comparison
- Deployment
- multi-tenant
- Region
- not restricted
- Release range
- current as of 2026-10-02
- Status
- inferred
- Checked
- 2026-10-02
Sources
- Elastic SIP Trunking — Twilio · tier 2 current vendor documentation · Section 'Authentication' compared with aws-chime-sdk-edit-voice-connector termination settings and genesys-help-external-trunk-settings
Cite this note
APA
WarmTransfer. (2026, October 2). SIP trunk authentication: registration and static IP and mutual TLS: source note sip-trunk-authentication-models-inf-ip-acl-plus-digest. WarmTransfer. https://warmtransfer.net/knowledge/claims/sip-trunk-authentication-models-inf-ip-acl-plus-digest
BibTeX
@misc{warmtransfer-claim-sip-trunk-authentication-models-inf-ip-acl-plus-digest,
title = {SIP trunk authentication: registration and static IP and mutual TLS: source note sip-trunk-authentication-models-inf-ip-acl-plus-digest},
author = {{WarmTransfer}},
year = {2026},
url = {https://warmtransfer.net/knowledge/claims/sip-trunk-authentication-models-inf-ip-acl-plus-digest},
note = {Source note sip-trunk-authentication-models-inf-ip-acl-plus-digest, checked 2026-10-02}
}