TM Module

Publisher

Kamailio project

URL

https://www.kamailio.org/docs/modules/stable/modules/tm.html

Published

unknown

Updated

unknown

Accessed

2026-10-02

HTTP status

200

License

GPL-2.0 project documentation; no-redistribution; short excerpts and locators only

Source notes citing this source

• In Kamailio's tm module, fr_inv_timer (default 120000 ms) bounds the wait for a final INVITE reply after a provisional reply and by default restarts on each provisional reply. in context
• In Kamailio's tm module, if no reply at all is received for a request before fr_timer expires (default 30000 ms), the transaction is terminated with a 408 handled in failure route. in context
• In Kamailio's tm module, noisy_ctimer (default enabled) makes INVITE transactions that time out on the FR INV timer always be replied to. in context
• In Kamailio's tm module, retransmissions start at retr_timer1 (default 500 ms) and increase up to retr_timer2 (default 4000 ms); max_noninv_lifetime defaults to 32000 ms and max_inv_lifetime to 180000 ms. in context

Cite this source record

APA

WarmTransfer. (2026, October 2). TM Module. WarmTransfer. https://warmtransfer.net/knowledge/sources/kamailio-docs-tm-module-stable

BibTeX

@misc{warmtransfer-kamailio-docs-tm-module-stable,
  title  = {TM Module},
  author = {{WarmTransfer}},
  year   = {2026},
  url    = {https://warmtransfer.net/knowledge/sources/kamailio-docs-tm-module-stable},
  note   = {Kamailio project, accessed 2026-10-02}
}