Source note · SIP registration failures
Twilio logs warning 32212 'SIP: Registration Authentication problem' when an endpoint tries to register to a SIP Domain with no Credential List mapped for registration, and the fix is to map one.
Checked 2026-09-25
- Vendor
- Twilio
- Product
- Programmable Voice SIP Domains
- Subsystem
- authentication
- Deployment
- multi-tenant
- Region
- not restricted
- Release range
- current as of 2026-09-25
- Checked
- 2026-09-25
Sources
- 32212: SIP: Registration Authentication problem — Twilio · tier 2 current vendor documentation · Possible Cause and Possible Solution fields
Cite this note
APA
WarmTransfer. (2026, September 25). SIP registration failures: source note sip-registration-failures-twilio-32212. WarmTransfer. https://warmtransfer.net/knowledge/claims/sip-registration-failures-twilio-32212
BibTeX
@misc{warmtransfer-claim-sip-registration-failures-twilio-32212,
title = {SIP registration failures: source note sip-registration-failures-twilio-32212},
author = {{WarmTransfer}},
year = {2026},
url = {https://warmtransfer.net/knowledge/claims/sip-registration-failures-twilio-32212},
note = {Source note sip-registration-failures-twilio-32212, checked 2026-09-25}
}