Source note · Connecting Unified CM to RingCentral contact center
By default CUBE trusts inbound SIP from addresses in dial-peer session targets and voice class server groups and silently discards inbound calls that fail the IP trusted-list check.
Checked 2026-09-25
- Vendor
- Cisco
- Product
- Unified Border Element
- Subsystem
- security
- Deployment
- on-premises
- Region
- not restricted
- Release range
- current as of 2026-09-25
- Checked
- 2026-09-25
Sources
- Cisco Guide to Harden Cisco Unified Border Element (CUBE) Enterprise Devices — Cisco Systems · tier 2 current vendor documentation · IP Address Trusted List section
Cite this note
APA
WarmTransfer. (2026, September 25). Connecting Unified CM to RingCentral contact center: source note cucm-with-ringcentral-contact-center-cube-trusted-list. WarmTransfer. https://warmtransfer.net/knowledge/claims/cucm-with-ringcentral-contact-center-cube-trusted-list
BibTeX
@misc{warmtransfer-claim-cucm-with-ringcentral-contact-center-cube-trusted-list,
title = {Connecting Unified CM to RingCentral contact center: source note cucm-with-ringcentral-contact-center-cube-trusted-list},
author = {{WarmTransfer}},
year = {2026},
url = {https://warmtransfer.net/knowledge/claims/cucm-with-ringcentral-contact-center-cube-trusted-list},
note = {Source note cucm-with-ringcentral-contact-center-cube-trusted-list, checked 2026-09-25}
}