Practitioners trimming SIP to avoid UDP fragmentation commonly remove User-Agent or Server, Allow, Date and Timestamp headers and prune unused codecs from SDP, treating them as low-risk removals.
field report · Checked 2026-10-02
- Vendor
- not restricted
- Product
- not restricted
- Subsystem
- SIP header manipulation
- Deployment
- on-premises
- Region
- not restricted
- Release range
- practitioner pattern as of 2016
- Status
- field report
- Checked
- 2026-10-02
Sources
- SIP UDP fragmentation and Kamailio: the SIP header diet — Evariste Systems (Alex Balashov) · tier 5 independent technical research · Section listing safe header removals
Cite this note
APA
WarmTransfer. (2026, October 2). Troubleshooting failed calls caused by large SIP messages over UDP: source note sip-fragmentation-troubleshooting-field-header-diet-targets. WarmTransfer. https://warmtransfer.net/knowledge/claims/sip-fragmentation-troubleshooting-field-header-diet-targets
BibTeX
@misc{warmtransfer-claim-sip-fragmentation-troubleshooting-field-header-diet-targets,
title = {Troubleshooting failed calls caused by large SIP messages over UDP: source note sip-fragmentation-troubleshooting-field-header-diet-targets},
author = {{WarmTransfer}},
year = {2026},
url = {https://warmtransfer.net/knowledge/claims/sip-fragmentation-troubleshooting-field-header-diet-targets},
note = {Source note sip-fragmentation-troubleshooting-field-header-diet-targets, checked 2026-10-02}
}