SIP UDP fragmentation and Kamailio: the SIP header diet

Publisher

Evariste Systems (Alex Balashov)

URL

https://blog.evaristesys.com/2016/02/04/sip-udp-fragmentation-and-kamailio-the-sip-header-diet/

Published

2016-02-04

Updated

unknown

Accessed

2026-10-02

HTTP status

200

License

blog copyright; no-redistribution; short excerpts and locators only

Source notes citing this source

• 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 in context
• Practitioners report that switching SIP to TCP is often impractical in the field because many peers do not have TCP enabled or reachable, especially behind NAT. field report in context

Cite this source record

APA

WarmTransfer. (2016, February 4). SIP UDP fragmentation and Kamailio: the SIP header diet. WarmTransfer. https://warmtransfer.net/knowledge/sources/evaristesys-blog-sip-udp-frag-header-diet

BibTeX

@misc{warmtransfer-evaristesys-blog-sip-udp-frag-header-diet,
  title  = {SIP UDP fragmentation and Kamailio: the SIP header diet},
  author = {{WarmTransfer}},
  year   = {2016},
  url    = {https://warmtransfer.net/knowledge/sources/evaristesys-blog-sip-udp-frag-header-diet},
  note   = {Evariste Systems (Alex Balashov), accessed 2026-10-02}
}