On CUBE, 'incoming uri via' matches the topmost Via header of an incoming SIP request, which identifies the last hop that forwarded it.

Checked 2026-09-24

the topmost via header of an incoming SIP invite represents the last hop that forwarded the SIP request
Vendor
Cisco
Product
Cisco Unified Border Element (IOS XE)
Subsystem
inbound dial-peer matching
Deployment
on-premises
Region
not restricted
Release range
IOS XE 17.6 onwards
Checked
2026-09-24

Sources

Cite this note

APA

WarmTransfer. (2026, September 24). Unified CM SIP trunks and security profiles: source note cucm-sip-trunks-cube-via-topmost. WarmTransfer. https://warmtransfer.net/knowledge/claims/cucm-sip-trunks-cube-via-topmost

BibTeX

@misc{warmtransfer-claim-cucm-sip-trunks-cube-via-topmost,
  title  = {Unified CM SIP trunks and security profiles: source note cucm-sip-trunks-cube-via-topmost},
  author = {{WarmTransfer}},
  year   = {2026},
  url    = {https://warmtransfer.net/knowledge/claims/cucm-sip-trunks-cube-via-topmost},
  note   = {Source note cucm-sip-trunks-cube-via-topmost, checked 2026-09-24}
}

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