Source note · One-way and no-way audio diagnosis
The software MTP remedy only works for G.711 calls, because a software MTP can only bridge G.711. Hardware MTPs cannot send the dummy RTP stream.
Checked 2026-09-24
Software MTP can only bridge G711 calls
- Vendor
- Cisco
- Product
- Cisco Unified Border Element with Unified CM MTP
- Subsystem
- media termination point
- Deployment
- on-premises
- Region
- not restricted
- Release range
- technote 214622
- Checked
- 2026-09-24
Sources
- Troubleshoot No-way Audio Issue with Hairpin Calls on CUBE — Cisco Systems, Inc. (www.cisco.com) · tier 2 current vendor documentation · Technote 214622, Solution > Software MTP, requirements
Cite this note
APA
WarmTransfer. (2026, September 24). One-way and no-way audio diagnosis: source note one-way-audio-hairpin-mtp-g711-only. WarmTransfer. https://warmtransfer.net/knowledge/claims/one-way-audio-hairpin-mtp-g711-only
BibTeX
@misc{warmtransfer-claim-one-way-audio-hairpin-mtp-g711-only,
title = {One-way and no-way audio diagnosis: source note one-way-audio-hairpin-mtp-g711-only},
author = {{WarmTransfer}},
year = {2026},
url = {https://warmtransfer.net/knowledge/claims/one-way-audio-hairpin-mtp-g711-only},
note = {Source note one-way-audio-hairpin-mtp-g711-only, checked 2026-09-24}
}