For a call from a Cisco IP phone line, Unified CM searches the partitions of both the line calling search space and the device calling search space.

Checked 2026-09-30

Vendor
Cisco
Product
Cisco Unified Communications Manager
Subsystem
calling search space
Deployment
on-premises
Region
not restricted
Release range
12.5(1) as documented
Checked
2026-09-30

Sources

Cite this note

APA

WarmTransfer. (2026, September 30). Troubleshooting Unified CM call routing failures and reorder tone: source note cucm-call-routing-failures-line-device-css-combined. WarmTransfer. https://warmtransfer.net/knowledge/claims/cucm-call-routing-failures-line-device-css-combined

BibTeX

@misc{warmtransfer-claim-cucm-call-routing-failures-line-device-css-combined,
  title  = {Troubleshooting Unified CM call routing failures and reorder tone: source note cucm-call-routing-failures-line-device-css-combined},
  author = {{WarmTransfer}},
  year   = {2026},
  url    = {https://warmtransfer.net/knowledge/claims/cucm-call-routing-failures-line-device-css-combined},
  note   = {Source note cucm-call-routing-failures-line-device-css-combined, checked 2026-09-30}
}

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