To connect analog devices to Teams Direct Routing, an Analog Telephony Adapter is required, and the certified SBC vendor must support that adapter.

Checked 2026-10-14

To connect analog devices to Direct Routing, you must use an Analog Telephony Adapter (ATA), and this adapter must be supported by the certified Session Border Controller (SBC) vendor.
Vendor
Microsoft
Product
Teams Phone
Subsystem
Direct Routing
Deployment
multi-tenant
Region
not restricted
Release range
current as of 2026-10-14
Checked
2026-10-14

Sources

Cite this note

APA

WarmTransfer. (2026, October 14). Inventorying a legacy PBX before migration: source note pbx-discovery-inventory-ms-ata-sbc-supported. WarmTransfer. https://warmtransfer.net/knowledge/claims/pbx-discovery-inventory-ms-ata-sbc-supported

BibTeX

@misc{warmtransfer-claim-pbx-discovery-inventory-ms-ata-sbc-supported,
  title  = {Inventorying a legacy PBX before migration: source note pbx-discovery-inventory-ms-ata-sbc-supported},
  author = {{WarmTransfer}},
  year   = {2026},
  url    = {https://warmtransfer.net/knowledge/claims/pbx-discovery-inventory-ms-ata-sbc-supported},
  note   = {Source note pbx-discovery-inventory-ms-ata-sbc-supported, checked 2026-10-14}
}

Read in context