Description

Using t_set_fr within the LOCATION section of a slightly modified default kamailio.cfg only works if the contact is using UDP and not TCP.

# ----- tm params -----
# auto-discard branches from previous serial forking leg
modparam("tm", "failure_reply_mode", 3)
# default retransmission timeout: 30sec
modparam("tm", "fr_timer", 30000)
# default invite retransmission timeout after 1xx: 120sec
modparam("tm", "fr_inv_timer", 30000)

# User location service
route[LOCATION] {
        [...]
        # per subscriber ring time
        if ($avp(s:ring_time) != $null) {
                # xlog("setting time out to $avp(s:ring_time)");
                t_set_fr($avp(s:ring_time) * 1000);
        }
}

Reproduction

register an contact with UDP, set the timer to 5 seconds. observe kamailio terminates the invite after 5 seconds.
then with TCP observe kamailio terminates the invite after 30 seconds (the default)

Additional Information

• Kamailio Version - output of kamailio -v

version: kamailio 5.2.1 (x86_64/linux) 947769
flags: STATS: Off, USE_TCP, USE_TLS, USE_SCTP, TLS_HOOKS, USE_RAW_SOCKS, DISABLE_NAGLE, USE_MCAST, DNS_IP_HACK, SHM_MEM, SHM_MMAP, PKG_MALLOC, Q_MALLOC, F_MALLOC, TLSF_MALLOC, DBG_SR_MEMORY, USE_FUTEX, FAST_LOCK-ADAPTIVE_WAIT, USE_DNS_CACHE, USE_DNS_FAILOVER, USE_NAPTR, USE_DST_BLACKLIST, HAVE_RESOLV_RES
ADAPTIVE_WAIT_LOOPS=1024, MAX_RECV_BUFFER_SIZE 262144 MAX_URI_SIZE 1024, BUF_SIZE 65535, DEFAULT PKG_SIZE 8MB
poll method support: poll, epoll_lt, epoll_et, sigio_rt, select.
id: 947769
compiled on 20:48:14 Feb 26 2019 with gcc 4.8.5

• Operating System:
  CentOS 7

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