Deployment guide for Calling in Webex App (Unified CM) - Manage and troubleshoot

Publisher

Cisco

URL

https://www.cisco.com/c/en/us/td/docs/voice_ip_comm/cloudCollaboration/wbxt/ucmcalling/unified-cm-wbx-teams-deployment-guide/unified-cm-wbx-teams-deployment-guide_chapter_0101.html

Published

2025-11-10

Updated

unknown

Accessed

2026-09-30

HTTP status

200

License

Cisco documentation terms; no-redistribution; short excerpts and locators only

Source notes citing this source

• Cisco's troubleshooting checklist says to confirm Jabber is not registered to Unified CM at the same time on the same machine as Webex App. in context
• Before opening a case, Cisco's checklist says to confirm any CTI-RD or Cisco Spark-RD device was removed from Unified CM for the user and that the user's devices are in Controlled Devices. in context
• Unified CM registration of Webex App and cross-launch cannot be enabled together; switching back requires disabling cross-launch and reselecting Calling in Webex App (Unified CM). in context
• A warning icon appears in Webex App when it fails to register to Unified CM; hovering shows the error and clicking shows recommended next steps such as signing in to phone services. in context
• 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. in context
• If the organization has a different calling behaviour enabled in Control Hub, such as cross-launch to another calling app, the guide says to disable it and reselect Calling in Webex App (Unified CM). in context
• The Unified CM end user account needs the access control group permission 'Standard CTI Allow Control of Phones supporting Connected Xfer and conf'; its absence is a listed cause of Calling in Webex App problems. in context
• Jabber and Webex App cannot both be registered to Unified CM in softphone mode at the same time on the same machine, so Jabber should be exited. in context
• After working through the Unified CM checklist, the deployment guide says to restart Webex App and choose Help > Send Feedback to submit logs. in context
• The Unified CM troubleshooting checklist says to verify that any CTI remote device (CTI-RD) or Cisco Spark remote device for the user was removed, and to delete any stray remote devices. in context
• A missing SUBSCRIBE Calling Search Space for Extension Mobility users is a listed cause of Calling in Webex App (Unified CM) problems; a value must be selected for it. in context

Cite this source record

APA

WarmTransfer. (2025, November 10). Deployment guide for Calling in Webex App (Unified CM) - Manage and troubleshoot. WarmTransfer. https://warmtransfer.net/knowledge/sources/cisco-dg-ucm-calling-manage

BibTeX

@misc{warmtransfer-cisco-dg-ucm-calling-manage,
  title  = {Deployment guide for Calling in Webex App (Unified CM) - Manage and troubleshoot},
  author = {{WarmTransfer}},
  year   = {2025},
  url    = {https://warmtransfer.net/knowledge/sources/cisco-dg-ucm-calling-manage},
  note   = {Cisco, accessed 2026-09-30}
}