Cisco documents media anti-tromboning as a CUBE media path mode that detects media loops created by call transfers or forwards and removes them from the RTP path, leaving the loop only in SIP signalling.

Checked 2026-09-24

detect and avoid loops that are created by call transfers or call forwards
Vendor
Cisco
Product
Cisco Unified Border Element
Subsystem
media anti-trombone
Deployment
on-premises
Region
not restricted
Release range
IOS 15M&T through IOS XE 17.6 onwards
Checked
2026-09-24

Sources

Cite this note

APA

WarmTransfer. (2026, September 24). One-way and no-way audio diagnosis: source note one-way-audio-anti-trombone-purpose. WarmTransfer. https://warmtransfer.net/knowledge/claims/one-way-audio-anti-trombone-purpose

BibTeX

@misc{warmtransfer-claim-one-way-audio-anti-trombone-purpose,
  title  = {One-way and no-way audio diagnosis: source note one-way-audio-anti-trombone-purpose},
  author = {{WarmTransfer}},
  year   = {2026},
  url    = {https://warmtransfer.net/knowledge/claims/one-way-audio-anti-trombone-purpose},
  note   = {Source note one-way-audio-anti-trombone-purpose, checked 2026-09-24}
}

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