Source note · DNS SRV and service discovery for SIP
RFC 3263 requires that retransmissions of a SIP request and the ACK for a non-2xx response to INVITE be sent to the same host as the original request.
Checked 2026-09-24
- Vendor
- IETF
- Product
- SIP
- Subsystem
- server location
- Deployment
- any
- Region
- not restricted
- Release range
- RFC 3263 (June 2002)
- Checked
- 2026-09-24
Sources
- RFC 3263: Session Initiation Protocol (SIP): Locating SIP Servers — RFC Editor / IETF · tier 1 standards and regulators · Section 4 Client Usage (introductory text)
Cite this note
APA
WarmTransfer. (2026, September 24). DNS SRV and service discovery for SIP: source note dns-srv-voice-rfc3263-same-host-retransmit. WarmTransfer. https://warmtransfer.net/knowledge/claims/dns-srv-voice-rfc3263-same-host-retransmit
BibTeX
@misc{warmtransfer-claim-dns-srv-voice-rfc3263-same-host-retransmit,
title = {DNS SRV and service discovery for SIP: source note dns-srv-voice-rfc3263-same-host-retransmit},
author = {{WarmTransfer}},
year = {2026},
url = {https://warmtransfer.net/knowledge/claims/dns-srv-voice-rfc3263-same-host-retransmit},
note = {Source note dns-srv-voice-rfc3263-same-host-retransmit, checked 2026-09-24}
}