Kamailio SIP Server - New Features in 6.1.x Version

Previous version was 6.0.x (released on Jan 2025), see what was new in that release at:

New In v6.0.x

This is a draft of new features added in devel version, manually updated, thus not always synchronized with what is new in source code repository.

New Modules

New in existing Modules

acc

microsecond precision for cdr

acc_json

added cdr_skip parameter

app_jsdt

added dynamic buffer sizing to load bigger .js files

app_python3s

added threads_mode parameter

auth

added support for password hashing with SHA512
added support for sha-512-256 hashing

cdp

vrf optional attribute on Acceptor and Peer definitions allowing Virtual Routing and Forwarding to be used in that socket.
added support for Min-Requested-Bandwidth-[DU]L AVPs

cfgutils

lock family functions got another optional key parameter to generate the hash id. See #3808 or cfgutils docs for details

corex

functions for managing via-body flags
added function msg_vbflag_parse()
extended list for iflag functions for msg apply changes
new function add_tcp_alias() as alternative for force_tcp_alias()

db_redis

added auto expiry support with hashes
added sentinel support
added support of max_key_length

dialog

added dlg_refer_cid(...) - send refer within a dialog matched by call-id

dispatcher

added ping socket configuration
new modparam ds_ping_fr_timeout
added ds_mark_addr(state, group, uri)
$dsv(name) extended to return setid and uri
new dispatching algorithm 14 (round-robin or serial)
added parameter event_callback_mode
added internal uid filed for destination structure and print it over rpc
option to manage destination states via internal uid
support for hexadecimal flags format in the list file
support for fields in ds_db_extra_attrs
normalization of the default transport for destination list entries according to RFC 3263

dmq

added remove_inactive parameter

dmq_usrloc

new modparam to sync UL_CONTACT_EXPIRE actions
new modparam for cflags replication

file_out

added require_rotation option
added rotation on timer

htable

support for 32bit and 64bit integer keys
exported config functions for inc, dec and is_null
more KEMI specific functions

json

new transformation {json.parsex,path}

kex

added KDMQ to request statistic
added stats for OPTIONS replies

mtree

added item parameter (add items to tree via modparam)
added mode attribute for mtree definition

nathelper

modparam to not send ping to Path

outbound

encode bind address into flow token as destination
added check_flow_token() function

pdb

add new RPC command to view/change PDB query timeout

permissions

allow_register_include_port(), the permissions module got a new function, which extends a functionality for checking contacts (locations) allowed to be registered. With a newer function one has a possibility to include Contact URI port into this check. See #3846 or permissions docs for details.
option to find the longest matching subnet - subnet_match_mode param
support for integer peer_tag

pua_dialoginfo

use_uuid optional parameter to generate pres_id using libuuid via uuid module

pua_json

add support for as-feature-event

pv

new transformation {uri.rmparam,name}
added functions to remove all root xavp/xavi items
added $tts variable
new transformation {num.name}
new transformation {s.selectsw,idx} - select with whitespaces delimiter
new transformation {s.sha1}
new transformation {s.intv}
added {s.crc32} transformation
added sha3/keccak transformations

pv_headers

added remove all headers function

rabbitmq

kamailio init will not fail if rabbitmq connection doesn't work. The module will try to reconnect when rabbitmq_publish() or rabbitmq_publish_consume() are called in the config.

rr

loose_route_mode() - added vmode bit 2 to skip outbound
added loose_route_mode modparam

rtpengine

added internal hash table dmq replication
added support for commands needed for siprec
added rtpengine_connect(...) function

sca

from_uri_avp to_uri_avp module parameters adding the possibility of define what is the URI value for To and/or From instead of the values coming from the SIP message.

secfilter

added RPC secfilter.del_wl command

sipdump

added mod param wait_mode
new parameter fagex to provide file age with time expression

siputils

sip_p_charging_vector() Once a new PCV has been generated by 'g' or 'f' the PCV cannot be changed again. The icid-generated-at parameter of a generated PCV will now be set to the sending interface IP address The function now returns a status value about what was done.
$pcv(status) New pseudo-variable parameter. Returns whether the PCV header was successfully parsed, deleted, newly generated or other. See #3929 or siputils for details.
contact_param_encode_alias() - function to encode contact with alias

sl

stats for 1xx replies

tcpops

tcp_con_alive()- function to check if a connection is alive by remote addr:port
tcp_con_alive() - support also for SIP URI parameter

textops

added str_all_in() function
added set_body_hex(hbody, ctype)
added set_rpl_body_hex(...)

tls

added provider_quirks parameter
added support for tls keys log - keylog_mode and keylog_file parameters
support to send keys log to a udp peer
added option to filter key logging - keylog_mode modparam

tm

new modparam delayed_reply
rpc commands for sending requests without automatic ACK
tm.retransmit_reply rpc command
rpc command tm.retransmit_reply_callid
invoke event route tm:local-request on generated ACK messages
run event tm:local-request for CANCEL if locally initiated
added module parameter evlreq_mode
rpc commands with hexa-encoded body
added rpc command tm.t_uac_attrs
added t_relay_to_proxy("proto:addr:port")
trigger tm:local-request event for ACK on negative replies
new parameter local_ack_branch_mode to control via branch value for local ACK
added event_route[tm:local-ack-sent]
added evcb_local_ack_sent parameter
option to create a completely new branch for local 200ok-ack
per uac/branch via-body flags field
added t_msg_apply_changes() function
setting for disabling auto ack generation

tmx

functions for management of t-uac via-body flags
added function to generate ack locally in config

topoh

added $th(ecallid) - return encoded call id

topos

added contact_mode=3 and 2 new modparam for contact host domains
added new modparam for updating record time on re-INVITE

uac

added fr_timeout and fr_inv_timeout for locally generated requests
added ftag and ttag fields for $uac_req(...)

Archived Modules

modules considered obsolete and not maintained have been moved to https://github.com/kamailio/kamailio-archive/

app_java
db_berkeley
db_perlvdb

New in Core

VRF Virtual Routing and Forwarding support in socket definition
ksrxrand - framework to set custom rand/srand functions
coreparam[name] - generic core parameter definition
new coreparam[random_engine] to control rand api
added option o for loadmodule
allow route(...) usage inside onsend_route block
support tls connection domain matching
added $defv(name) variable to return unquoted value of the define
added $defs(name) variable to return defined value as string between double quotes
added multiarch support for rpm generation
option for tls multi-threading processing
dns cache - added rm delay of entries with high refcnt
support for modparam int stored in shared memory
rpc command modparam.getn to get the value of an integer modparam
rpc command modparam.setn to set integer modparam stored in shared memory
rpc command modparam.list to list all modules parameters
rpc command modparam.gets to get the string value of a module parameter
added coreparam[timer_sanity_check]
fixup helpers for numbers support hexadecimal format
added coreparam[iuid] to set a string instance unique id
added $iuid variable - return the instance unique id value
log_prefix_mode value 2 to use faked request for non-sip logging
internal api parameter to add extra value to via branch
use process shared pthread mutexes for arm64
use stdatomic for arm64
added sha3 implementation
msg parser - field for via-body flags
srjson - array pretty-printing similar to structure alignment

Command line arguments

--domain=val - match the config parameter as alternative to alias
--iuid=val - set instance unique id via cli parameter

Interpreter

Parameters

msg_apply_changes_mode - control if message changes are applied before transaction is created
msg_clone_extra_size - specify extra size in bytes to be allocated for message buffer when cloning it
tcp_listen_backlog - allows to set the value for tcp listen backlog
tcp_main_threads - control the tcp main process working threads
tls_connection_match_domain - tls connection domain matching
coreparam[name]=value - generic core parameter definition

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