On Webex Calling, analog telephone adapters (ATAs) and DECT phones do not support Opus.

Checked 2026-09-24

Analog telephone adapters and DECT phones don't support Opus on the Webex Calling platform.
Vendor
Cisco
Product
Webex Calling
Subsystem
codecs
Deployment
multi-tenant
Region
not restricted
Release range
current as of 2026-09-24 (page updated 2025-04-10)
Checked
2026-09-24

Sources

Cite this note

APA

WarmTransfer. (2026, September 24). Codec selection and bandwidth planning: source note bandwidth-codec-planning-wxc-ata-dect-no-opus. WarmTransfer. https://warmtransfer.net/knowledge/claims/bandwidth-codec-planning-wxc-ata-dect-no-opus

BibTeX

@misc{warmtransfer-claim-bandwidth-codec-planning-wxc-ata-dect-no-opus,
  title  = {Codec selection and bandwidth planning: source note bandwidth-codec-planning-wxc-ata-dect-no-opus},
  author = {{WarmTransfer}},
  year   = {2026},
  url    = {https://warmtransfer.net/knowledge/claims/bandwidth-codec-planning-wxc-ata-dect-no-opus},
  note   = {Source note bandwidth-codec-planning-wxc-ata-dect-no-opus, checked 2026-09-24}
}

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