Public Switched Telephone Network (PSTN) integration concepts for Azure Communication Services

Publisher

Microsoft

URL

https://learn.microsoft.com/en-us/azure/communication-services/concepts/telephony/telephony-concept

Published

2026-06-22

Updated

unknown

Accessed

2026-09-23

HTTP status

200

License

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

Source notes citing this source

• Microsoft's ACS documentation describes Operator Connect as a fully managed service with no customer hardware footprint. The participating carrier manages PSTN calling and SBCs for the customer. in context
• The ACS PSTN concepts page says Azure Communication Services will now support only Teams Phone connectivity. It describes ACS Direct Offer and ACS Direct Routing as legacy telephony options being retired. in context

Cite this source record

APA

WarmTransfer. (2026, June 22). Public Switched Telephone Network (PSTN) integration concepts for Azure Communication Services. WarmTransfer. https://warmtransfer.net/knowledge/sources/ms-learn-acs-telephony-concept

BibTeX

@misc{warmtransfer-ms-learn-acs-telephony-concept,
  title  = {Public Switched Telephone Network (PSTN) integration concepts for Azure Communication Services},
  author = {{WarmTransfer}},
  year   = {2026},
  url    = {https://warmtransfer.net/knowledge/sources/ms-learn-acs-telephony-concept},
  note   = {Microsoft, accessed 2026-09-23}
}