The CSR 14 sizing guide says that in deskphone control mode, calls from the software client use the CTI interface on Unified CM, so those devices count toward CTI sizing.

Checked 2026-09-25

In deskphone control mode, calls from the software client use the CTI interface on Unified CM
Vendor
Cisco
Product
Unified Communications Manager
Subsystem
Sizing
Deployment
on-premises
Region
not restricted
Release range
Collaboration System Release 14
Checked
2026-09-25

Sources

Cite this note

APA

WarmTransfer. (2026, September 25). Unified CM CTI and JTAPI integrations: source note cucm-cti-jtapi-csr14-deskphone-uses-cti. WarmTransfer. https://warmtransfer.net/knowledge/claims/cucm-cti-jtapi-csr14-deskphone-uses-cti

BibTeX

@misc{warmtransfer-claim-cucm-cti-jtapi-csr14-deskphone-uses-cti,
  title  = {Unified CM CTI and JTAPI integrations: source note cucm-cti-jtapi-csr14-deskphone-uses-cti},
  author = {{WarmTransfer}},
  year   = {2026},
  url    = {https://warmtransfer.net/knowledge/claims/cucm-cti-jtapi-csr14-deskphone-uses-cti},
  note   = {Source note cucm-cti-jtapi-csr14-deskphone-uses-cti, checked 2026-09-25}
}

Read in context