Troubleshoot Azure Communication Services direct routing TLS certificate and SIP OPTIONS issues

Publisher

Microsoft

URL

https://learn.microsoft.com/en-us/azure/communication-services/concepts/telephony/monitoring-troubleshooting-telephony/troubleshoot-tls-certificate-sip-options

Published

2026-09-23

Updated

unknown

Accessed

2026-09-25

HTTP status

200

License

Microsoft Learn terms of use; no-redistribution; short excerpts and locators only

Source notes citing this source

• The Azure Communication Services direct routing troubleshooting article tells an SBC that does not trust the SIP proxy certificate to install both the Baltimore CyberTrust root and DigiCert Global Root G2. disputed in context

Cite this source record

APA

WarmTransfer. (2026, September 23). Troubleshoot Azure Communication Services direct routing TLS certificate and SIP OPTIONS issues. WarmTransfer. https://warmtransfer.net/knowledge/sources/ms-learn-acs-dr-tls-troubleshoot

BibTeX

@misc{warmtransfer-ms-learn-acs-dr-tls-troubleshoot,
  title  = {Troubleshoot Azure Communication Services direct routing TLS certificate and SIP OPTIONS issues},
  author = {{WarmTransfer}},
  year   = {2026},
  url    = {https://warmtransfer.net/knowledge/sources/ms-learn-acs-dr-tls-troubleshoot},
  note   = {Microsoft, accessed 2026-09-25}
}