Source note · Early media and ringback behavior
RFC 3960's application server model uses a separate offer/answer exchange for early media, carried as early-session bodies, so a UAC can reject or mute early media offers without muting the regular session.
Checked 2026-09-24
- Vendor
- IETF
- Product
- SIP
- Subsystem
- early media
- Deployment
- any
- Region
- not restricted
- Release range
- RFC 3960
- Checked
- 2026-09-24
Sources
- RFC 3960: Early Media and Ringing Tone Generation in the Session Initiation Protocol (SIP) — IETF / RFC Editor · tier 1 standards and regulators · Section 4 (The Application Server Model)
Cite this note
APA
WarmTransfer. (2026, September 24). Early media and ringback behavior: source note early-media-ringback-app-server-model. WarmTransfer. https://warmtransfer.net/knowledge/claims/early-media-ringback-app-server-model
BibTeX
@misc{warmtransfer-claim-early-media-ringback-app-server-model,
title = {Early media and ringback behavior: source note early-media-ringback-app-server-model},
author = {{WarmTransfer}},
year = {2026},
url = {https://warmtransfer.net/knowledge/claims/early-media-ringback-app-server-model},
note = {Source note early-media-ringback-app-server-model, checked 2026-09-24}
}