A softphone device that is missing from the Unified CM end user's Controlled Devices is a listed cause of Calling in Webex App (Unified CM) failures; the fix is to add the softphone device to Controlled Devices.

Checked 2026-10-01

Vendor
Cisco
Product
Cisco Unified Communications Manager
Subsystem
end user configuration
Deployment
on-premises
Region
not restricted
Release range
current as of 2026-10-01
Checked
2026-10-01

Sources

Cite this note

APA

WarmTransfer. (2026, October 1). Troubleshooting calling in the Webex App: source note webex-app-calling-troubleshooting-ucm-controlled-devices. WarmTransfer. https://warmtransfer.net/knowledge/claims/webex-app-calling-troubleshooting-ucm-controlled-devices

BibTeX

@misc{warmtransfer-claim-webex-app-calling-troubleshooting-ucm-controlled-devices,
  title  = {Troubleshooting calling in the Webex App: source note webex-app-calling-troubleshooting-ucm-controlled-devices},
  author = {{WarmTransfer}},
  year   = {2026},
  url    = {https://warmtransfer.net/knowledge/claims/webex-app-calling-troubleshooting-ucm-controlled-devices},
  note   = {Source note webex-app-calling-troubleshooting-ucm-controlled-devices, checked 2026-10-01}
}

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