On MPP phones, the Message Waiting parameter indicates whether the phone's MWI is lit and is toggled by a message from the SIP proxy.

Checked 2026-09-25

This parameter toggles a message from the SIP proxy to indicate if a message is waiting.
Vendor
Cisco
Product
Cisco IP Phone 6800
Subsystem
MWI state
Deployment
multi-tenant, third-party-call-control
Region
not restricted
Release range
current as of 2026-09-25
Checked
2026-09-25

Sources

Cite this note

APA

WarmTransfer. (2026, September 25). Message waiting indicator troubleshooting: source note mwi-troubleshooting-mpp-message-waiting-param. WarmTransfer. https://warmtransfer.net/knowledge/claims/mwi-troubleshooting-mpp-message-waiting-param

BibTeX

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

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