Source note · Setting up Extension Mobility in Unified CM
Extension Mobility is disabled on protected phones (the secure tone feature), and Extension Mobility does not support hold reversion.
Checked 2026-09-30
Cisco Extension Mobility and join across line services are disabled on protected phones.
- Vendor
- Cisco
- Product
- Unified Communications Manager
- Subsystem
- Extension Mobility
- Deployment
- on-premises
- Region
- not restricted
- Release range
- Release 15 and SUs
- Checked
- 2026-09-30
Sources
- Feature Configuration Guide for Cisco Unified Communications Manager, Release 15 and SUs - Extension Mobility — Cisco Systems · tier 2 current vendor documentation · Extension Mobility Restrictions table, Secure Tone and Hold Reversion
Cite this note
APA
WarmTransfer. (2026, September 30). Setting up Extension Mobility in Unified CM: source note cucm-extension-mobility-setup-protected-phones. WarmTransfer. https://warmtransfer.net/knowledge/claims/cucm-extension-mobility-setup-protected-phones
BibTeX
@misc{warmtransfer-claim-cucm-extension-mobility-setup-protected-phones,
title = {Setting up Extension Mobility in Unified CM: source note cucm-extension-mobility-setup-protected-phones},
author = {{WarmTransfer}},
year = {2026},
url = {https://warmtransfer.net/knowledge/claims/cucm-extension-mobility-setup-protected-phones},
note = {Source note cucm-extension-mobility-setup-protected-phones, checked 2026-09-30}
}