The ICM instance number, stored in the registry under the customer instance's CurrentVersion key, must match on both PGs of a pair; a mismatch prevents the pair from forming duplex.
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 · Enterprise Instance Number
Cite this note
APA
WarmTransfer. (2026, October 2). Troubleshooting UCCE peripheral gateways and CTI Server going offline: source note ucce-peripheral-gateway-troubleshooting-instance-num-match. WarmTransfer. https://warmtransfer.net/knowledge/claims/ucce-peripheral-gateway-troubleshooting-instance-num-match
BibTeX
@misc{warmtransfer-claim-ucce-peripheral-gateway-troubleshooting-instance-num-match,
title = {Troubleshooting UCCE peripheral gateways and CTI Server going offline: source note ucce-peripheral-gateway-troubleshooting-instance-num-match},
author = {{WarmTransfer}},
year = {2026},
url = {https://warmtransfer.net/knowledge/claims/ucce-peripheral-gateway-troubleshooting-instance-num-match},
note = {Source note ucce-peripheral-gateway-troubleshooting-instance-num-match, checked 2026-10-02}
}