Source note · One-way and no-way audio diagnosis
For a softphone on VPN, the guide attributes one-way audio to the softphone choosing the wrong network adapter address. The fix is to set the VPN IP address in the softphone's Network Audio Settings.
Checked 2026-09-24
- Vendor
- Cisco
- Product
- Cisco softphone on Unified CM
- Subsystem
- endpoint media address
- Deployment
- on-premises
- Region
- not restricted
- Release range
- Unified CM 12.5(1) guide
- Checked
- 2026-09-24
Sources
- Troubleshooting Guide for Cisco Unified Communications Manager Release 12.5(1) — Device Issues — Cisco Systems, Inc. (www.cisco.com) · tier 2 current vendor documentation · Device Issues > Voice Quality > One-Way Audio or No Audio > VPN softphone subsection
Cite this note
APA
WarmTransfer. (2026, September 24). One-way and no-way audio diagnosis: source note one-way-audio-vpn-softphone-adapter. WarmTransfer. https://warmtransfer.net/knowledge/claims/one-way-audio-vpn-softphone-adapter
BibTeX
@misc{warmtransfer-claim-one-way-audio-vpn-softphone-adapter,
title = {One-way and no-way audio diagnosis: source note one-way-audio-vpn-softphone-adapter},
author = {{WarmTransfer}},
year = {2026},
url = {https://warmtransfer.net/knowledge/claims/one-way-audio-vpn-softphone-adapter},
note = {Source note one-way-audio-vpn-softphone-adapter, checked 2026-09-24}
}