Cisco identifies mismatched PG port assignments between the two servers of a duplex PG pair as a typical cause of a PG remaining in the isolated-enabled state, especially after a fresh install or upgrade.
Checked 2026-10-02
- Vendor
- Cisco
- Product
- Unified Contact Center Enterprise
- Subsystem
- peripheral-gateway-duplex
- Deployment
- on-premises
- Region
- not restricted
- Release range
- technote dated 2017-02-07
- Checked
- 2026-10-02
Sources
- Unified Contact Center Enterprise (UCCE) Peripheral Gateway (PG) TCP Port Range Assignment and duplex operations — Cisco Systems · tier 2 current vendor documentation · Introduction; Background Information
Cite this note
APA
WarmTransfer. (2026, October 2). Troubleshooting UCCE peripheral gateways and CTI Server going offline: source note ucce-peripheral-gateway-troubleshooting-iso-enabled-ports. WarmTransfer. https://warmtransfer.net/knowledge/claims/ucce-peripheral-gateway-troubleshooting-iso-enabled-ports
BibTeX
@misc{warmtransfer-claim-ucce-peripheral-gateway-troubleshooting-iso-enabled-ports,
title = {Troubleshooting UCCE peripheral gateways and CTI Server going offline: source note ucce-peripheral-gateway-troubleshooting-iso-enabled-ports},
author = {{WarmTransfer}},
year = {2026},
url = {https://warmtransfer.net/knowledge/claims/ucce-peripheral-gateway-troubleshooting-iso-enabled-ports},
note = {Source note ucce-peripheral-gateway-troubleshooting-iso-enabled-ports, checked 2026-10-02}
}