For SCCP integrations, the MWI On and MWI Off directory numbers are created in Cisco Unified CM Administration under Advanced Features > Voice Mail > Message Waiting.

Checked 2026-09-25

Vendor
Cisco
Product
Cisco Unified Communications Manager
Subsystem
message waiting configuration
Deployment
on-premises
Region
not restricted
Release range
Unity Connection Release 15 integration guide
Checked
2026-09-25

Sources

Cite this note

APA

WarmTransfer. (2026, September 25). Message waiting indicator troubleshooting: source note mwi-troubleshooting-sccp-mwi-dn-location. WarmTransfer. https://warmtransfer.net/knowledge/claims/mwi-troubleshooting-sccp-mwi-dn-location

BibTeX

@misc{warmtransfer-claim-mwi-troubleshooting-sccp-mwi-dn-location,
  title  = {Message waiting indicator troubleshooting: source note mwi-troubleshooting-sccp-mwi-dn-location},
  author = {{WarmTransfer}},
  year   = {2026},
  url    = {https://warmtransfer.net/knowledge/claims/mwi-troubleshooting-sccp-mwi-dn-location},
  note   = {Source note mwi-troubleshooting-sccp-mwi-dn-location, checked 2026-09-25}
}

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