Source note · Unified CM device pools and device configuration model
For SIP phones on Unified CM, Phone NTP References must be configured and assigned through the device pool, so that each SIP phone is pointed at an appropriate NTP server.
Checked 2026-09-24
It is mandatory that you configure Phone NTP References and assign them through the device pool
- Vendor
- Cisco
- Product
- Unified Communications Manager
- Subsystem
- NTP / date-time group
- Deployment
- on-premises, dedicated-instance
- Region
- not restricted
- Release range
- 14 and SUs; 15 and SUs
- Checked
- 2026-09-24
Sources
- System Configuration Guide for Cisco Unified Communications Manager, Release 15 and SUs - Configure Core Settings for Device Pools — Cisco Systems · tier 2 current vendor documentation · Configure the Network Time Protocol / Phone NTP References
Cite this note
APA
WarmTransfer. (2026, September 24). Unified CM device pools and device configuration model: source note cucm-device-pools-sip-ntp-mandatory. WarmTransfer. https://warmtransfer.net/knowledge/claims/cucm-device-pools-sip-ntp-mandatory
BibTeX
@misc{warmtransfer-claim-cucm-device-pools-sip-ntp-mandatory,
title = {Unified CM device pools and device configuration model: source note cucm-device-pools-sip-ntp-mandatory},
author = {{WarmTransfer}},
year = {2026},
url = {https://warmtransfer.net/knowledge/claims/cucm-device-pools-sip-ntp-mandatory},
note = {Source note cucm-device-pools-sip-ntp-mandatory, checked 2026-09-24}
}