Source note · Remote site survivability patterns
In Unified CM, SRST is set per device pool: when a device pool has an SRST reference, its phones try to connect to that SRST gateway if they cannot reach any Unified CM node.
Checked 2026-09-24
- Vendor
- Cisco
- Product
- Cisco Unified Communications Manager
- Subsystem
- srst-reference
- Deployment
- on-premises, dedicated-instance
- Region
- not restricted
- Release range
- CUCM 15 and SUs
- Checked
- 2026-09-24
Sources
- System Configuration Guide for Cisco Unified Communications Manager, Release 15 and SUs - Configure SRST — Cisco Systems · tier 2 current vendor documentation · SRST Overview
Cite this note
APA
WarmTransfer. (2026, September 24). Remote site survivability patterns: source note survivability-remote-site-cucm-srst-ref-pool. WarmTransfer. https://warmtransfer.net/knowledge/claims/survivability-remote-site-cucm-srst-ref-pool
BibTeX
@misc{warmtransfer-claim-survivability-remote-site-cucm-srst-ref-pool,
title = {Remote site survivability patterns: source note survivability-remote-site-cucm-srst-ref-pool},
author = {{WarmTransfer}},
year = {2026},
url = {https://warmtransfer.net/knowledge/claims/survivability-remote-site-cucm-srst-ref-pool},
note = {Source note survivability-remote-site-cucm-srst-ref-pool, checked 2026-09-24}
}