Source note · Hold resume and conference signaling
RFC 5359 says older UAs may set the connection address to 0.0.0.0 to hold and that this is deprecated in favour of inactive when no media is sent or sendonly when media is still sent.
Checked 2026-09-24
Older UAs may set the connection address to 0.0.0.0 when initiating hold.
- Vendor
- IETF
- Product
- SIP service examples
- Subsystem
- legacy hold
- Deployment
- any
- Region
- not restricted
- Release range
- RFC 5359 as published
- Checked
- 2026-09-24
Sources
- Session Initiation Protocol Service Examples — IETF / RFC Editor · tier 1 standards and regulators · Section 2.1 Call Hold second paragraph
Cite this note
APA
WarmTransfer. (2026, September 24). Hold resume and conference signaling: source note hold-resume-conference-5359-zero-addr-deprecated. WarmTransfer. https://warmtransfer.net/knowledge/claims/hold-resume-conference-5359-zero-addr-deprecated
BibTeX
@misc{warmtransfer-claim-hold-resume-conference-5359-zero-addr-deprecated,
title = {Hold resume and conference signaling: source note hold-resume-conference-5359-zero-addr-deprecated},
author = {{WarmTransfer}},
year = {2026},
url = {https://warmtransfer.net/knowledge/claims/hold-resume-conference-5359-zero-addr-deprecated},
note = {Source note hold-resume-conference-5359-zero-addr-deprecated, checked 2026-09-24}
}