Source note · Analysing a SIP call in Wireshark
An answerer rejects an offered media stream by setting the port of the corresponding m= line in the answer to zero.
Checked 2026-09-24
- Vendor
- IETF
- Product
- SDP offer
- Subsystem
- answer generation
- Deployment
- multi-tenant, on-premises
- Region
- not restricted
- Release range
- RFC 3264
- Checked
- 2026-09-24
Sources
- RFC 3264 — An Offer/Answer Model with the Session Description Protocol (SDP) — IETF / RFC Editor · tier 1 standards and regulators · RFC 3264 section 6 Generating the Answer
Cite this note
APA
WarmTransfer. (2026, September 24). Analysing a SIP call in Wireshark: source note sip-call-analysis-wireshark-oa-reject-port-zero. WarmTransfer. https://warmtransfer.net/knowledge/claims/sip-call-analysis-wireshark-oa-reject-port-zero
BibTeX
@misc{warmtransfer-claim-sip-call-analysis-wireshark-oa-reject-port-zero,
title = {Analysing a SIP call in Wireshark: source note sip-call-analysis-wireshark-oa-reject-port-zero},
author = {{WarmTransfer}},
year = {2026},
url = {https://warmtransfer.net/knowledge/claims/sip-call-analysis-wireshark-oa-reject-port-zero},
note = {Source note sip-call-analysis-wireshark-oa-reject-port-zero, checked 2026-09-24}
}