Source note · SIP call forwarding and routing loops
Binding each CUBE inbound dial-peer to a dial-peer group that excludes the trunk the call arrived on is a way to stop a carrier-to-CUBE call from being routed back out to the same carrier.
inferred · Checked 2026-09-25
- Vendor
- Cisco
- Product
- Cisco Unified Border Element
- Subsystem
- dial-peer routing
- Deployment
- on-premises
- Region
- not restricted
- Release range
- current as of 2026-09-25
- Status
- inferred
- Checked
- 2026-09-25
Sources
- Understand IOS and IOS XE Call Routing — Cisco Systems · tier 2 current vendor documentation · Dial-Peer Groups section (applied reasoning)
Cite this note
APA
WarmTransfer. (2026, September 25). SIP call forwarding and routing loops: source note sip-forwarding-loops-cube-dpg-prevents-hairpin. WarmTransfer. https://warmtransfer.net/knowledge/claims/sip-forwarding-loops-cube-dpg-prevents-hairpin
BibTeX
@misc{warmtransfer-claim-sip-forwarding-loops-cube-dpg-prevents-hairpin,
title = {SIP call forwarding and routing loops: source note sip-forwarding-loops-cube-dpg-prevents-hairpin},
author = {{WarmTransfer}},
year = {2026},
url = {https://warmtransfer.net/knowledge/claims/sip-forwarding-loops-cube-dpg-prevents-hairpin},
note = {Source note sip-forwarding-loops-cube-dpg-prevents-hairpin, checked 2026-09-25}
}