Twilio's StirVerstat parameter on inbound calls reports passed or failed validation with the attestation level, and includes Diverted and Passthrough variants for forwarded calls.
Checked 2026-10-02
- Vendor
- Twilio
- Product
- Twilio Programmable Voice
- Subsystem
- inbound verification
- Deployment
- multi-tenant
- Region
- us
- Release range
- current as of 2026-10-02
- Checked
- 2026-10-02
Sources
- Trusted Calling with SHAKEN/STIR — Twilio · tier 2 current vendor documentation · StirVerstat parameter table
Cite this note
APA
WarmTransfer. (2026, October 2). Troubleshooting STIR/SHAKEN attestation levels on outbound calls: source note stir-shaken-attestation-troubleshooting-twilio-verstat-div. WarmTransfer. https://warmtransfer.net/knowledge/claims/stir-shaken-attestation-troubleshooting-twilio-verstat-div
BibTeX
@misc{warmtransfer-claim-stir-shaken-attestation-troubleshooting-twilio-verstat-div,
title = {Troubleshooting STIR/SHAKEN attestation levels on outbound calls: source note stir-shaken-attestation-troubleshooting-twilio-verstat-div},
author = {{WarmTransfer}},
year = {2026},
url = {https://warmtransfer.net/knowledge/claims/stir-shaken-attestation-troubleshooting-twilio-verstat-div},
note = {Source note stir-shaken-attestation-troubleshooting-twilio-verstat-div, checked 2026-10-02}
}