Source note · SDP offer answer and codec negotiation

The answerer may set its own ptime for any stream to state the packetisation interval it wants to receive, and there is no requirement that the interval be the same in each direction.

Checked 2026-09-15

There is no requirement that the packetization interval be the same in each direction for a particular stream.

Vendor: IETF
Product: SIP
Subsystem: SDP offer/answer
Deployment: not restricted
Region: not restricted
Release range: RFC 3264
Checked: 2026-09-15

Sources

RFC 3264 — An Offer/Answer Model with the Session Description Protocol (SDP) — IETF / RFC Editor · tier 1 standards and regulators · RFC 3264 section 6.1 Unicast Streams

Cite this note

APA

WarmTransfer. (2026, September 15). SDP offer answer and codec negotiation: source note sdp-oa-packetisation-may-differ-per-direction. WarmTransfer. https://warmtransfer.net/knowledge/claims/sdp-oa-packetisation-may-differ-per-direction

BibTeX

@misc{warmtransfer-claim-sdp-oa-packetisation-may-differ-per-direction,
  title  = {SDP offer answer and codec negotiation: source note sdp-oa-packetisation-may-differ-per-direction},
  author = {{WarmTransfer}},
  year   = {2026},
  url    = {https://warmtransfer.net/knowledge/claims/sdp-oa-packetisation-may-differ-per-direction},
  note   = {Source note sdp-oa-packetisation-may-differ-per-direction, checked 2026-09-15}
}

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