The SCCP integration guide has the MWI On and MWI Off numbers configured as two unique extensions in the same partition (the voice mail pilot partition in its example), with Message Waiting Indicator set to On and Off respectively and the calling search space used by user phones.

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-settings. WarmTransfer. https://warmtransfer.net/knowledge/claims/mwi-troubleshooting-sccp-mwi-dn-settings

BibTeX

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

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