Source note · Message waiting indicator troubleshooting
Per-line MWI in the Webex App multi call window on Unified CM requires Unified CM 12.5 SU6 or 14.1 SU1 onwards.
Checked 2026-09-25
To support message waiting indicator (MWI) per line, and privacy settings, you must use Unified CM release 12.5 SU6 or 14.1 SU1 onwards.
- Vendor
- Cisco
- Product
- Webex App calling on Unified CM
- Subsystem
- multi call window
- Deployment
- on-premises
- Region
- not restricted
- Release range
- Unified CM 12.5 SU6 or 14.1 SU1 and later
- Checked
- 2026-09-25
Sources
- Configure multi call window for Calling in Webex App (Unified CM) — Cisco Webex Help Center · tier 2 current vendor documentation · Prerequisites
Cite this note
APA
WarmTransfer. (2026, September 25). Message waiting indicator troubleshooting: source note mwi-troubleshooting-webex-app-ucm-per-line. WarmTransfer. https://warmtransfer.net/knowledge/claims/mwi-troubleshooting-webex-app-ucm-per-line
BibTeX
@misc{warmtransfer-claim-mwi-troubleshooting-webex-app-ucm-per-line,
title = {Message waiting indicator troubleshooting: source note mwi-troubleshooting-webex-app-ucm-per-line},
author = {{WarmTransfer}},
year = {2026},
url = {https://warmtransfer.net/knowledge/claims/mwi-troubleshooting-webex-app-ucm-per-line},
note = {Source note mwi-troubleshooting-webex-app-ucm-per-line, checked 2026-09-25}
}