Source note · Message waiting indicator troubleshooting
RFC 3842 describes message-summary notifications within a SUBSCRIBE-established subscription and does not appear to define an unsolicited (subscription-less) NOTIFY mode; vendor 'unsolicited NOTIFY' MWI is therefore a vendor practice rather than something RFC 3842 specifies.
inferred · Checked 2026-09-25
- Vendor
- not restricted
- Product
- SIP
- Subsystem
- message-summary subscriptions
- Deployment
- any
- Region
- not restricted
- Release range
- RFC 3842 (August 2004)
- Status
- inferred
- Checked
- 2026-09-25
Sources
- RFC 3842: A Message Summary and Message Waiting Indication Event Package for the Session Initiation Protocol (SIP) — IETF / RFC Editor · tier 1 standards and regulators · Section 3 (notifier generation of NOTIFY requests); absence across document
Cite this note
APA
WarmTransfer. (2026, September 25). Message waiting indicator troubleshooting: source note mwi-troubleshooting-rfc3842-no-unsolicited. WarmTransfer. https://warmtransfer.net/knowledge/claims/mwi-troubleshooting-rfc3842-no-unsolicited
BibTeX
@misc{warmtransfer-claim-mwi-troubleshooting-rfc3842-no-unsolicited,
title = {Message waiting indicator troubleshooting: source note mwi-troubleshooting-rfc3842-no-unsolicited},
author = {{WarmTransfer}},
year = {2026},
url = {https://warmtransfer.net/knowledge/claims/mwi-troubleshooting-rfc3842-no-unsolicited},
note = {Source note mwi-troubleshooting-rfc3842-no-unsolicited, checked 2026-09-25}
}