sr-users

sr-users@lists.kamailio.org

25 participants
37379 discussions

Serial Forking with differing next hop for each branch?
by Barry Flanagan 10 Oct '23

10 Oct '23

Hi I have a scenario where I need to implement serial forking but each destination has also a next hop proxy. I can do the forking using append_branch, but how can I set the destination URI for each branch? In some cases the R-URI does not change, only the next hop proxy. Example: R-URI Next Hop user1(a)domain.com XXX.XXX.XXX.XXX user1(a)domain.com YYY.YYY.YYY.YYY user2(a)domain.com XXX.XXX.XXX.XXX I was thinking I could use a htable to store the next hop using the R-URI as the key, but as can be seen above there are possibly duplicate R-URIs with only the next hop changing. Thanks. -- -Barry

4 18

0.0.0.0 in VIA header
by Lewis Hutchinson 10 Oct '23

10 Oct '23

Morning What have you got your listen / advertise address / port set as? See this link > https://www.kamailio.org/wiki/cookbooks/5.5.x/core#advertised_address I'd probably start by looking at that. Lewis Mission Labs Limited is registered in England, company number 10040088. Trading Office: The Old Milk Depot, Bacup Rd, Rossendale, BB4 7FE. Registered office: The Scalpel, 18th Floor 52 Lime Street, London, EC3M 7AF. Email confidentiality notice: This message is private and confidential. If you have received this message in error, please notify us and remove it from your system. Please consider the environment before you print this email.

1 0

0.0.0.0 in VIA header
by Ali Taher 10 Oct '23

10 Oct '23

Hello, I'm using Kamailio as SIP proxy to receive INVITE packets, randomize A-number and then relay it to a certain gateway. I noticed that a Via header is added to the INVITE sent by Kamailio to the gateway with 0.0.0.0 as address as shown below: Via: SIP/2.0/UDP 0.0.0.0;branch=z9hG4bK2d97.61de75dd58fa7ca7450cc8b9b01db62f.0 As far as I know, the IP that should be used in the new added VIA header must be Kamailio IP, but it's not the case here, knowing that Kamailio is not behind NAT. Regards, Ali Taher

2 1

CANCEL first, then INVITE.
by James Lipski 09 Oct '23

09 Oct '23

Hello, Is there a way to change the transaction order when a failure fork occurs -- to explain, endpoint 1 calls endpoint 2. Call towards endpoint 2 goes unanswered, and so the call forks to voicemail, I see that an INVITE is sent towards my voicemail server first, followed by a CANCEL towards the endpoint; can I send the CANCEL first to the endpoint and then INVITE towards my voicemail server. I'm essentially using the bundled/sample configurations for testing. Thank you.

4 10

kamailio Behind nat. How Record-Route should be added ？
by codenot＠msn.com 09 Oct '23

09 Oct '23

UA1(192.168.0.1) --> kamailio (internal:192.168.0.2 public:1.1.1.1) --> UA2(2.2.2.2) if in UA1 INVITE, I write KSR.rr.record_route(). so UA2(2.2.2.2) received sip msg (Record-Route: <sip:1.1.1.1:7080>), so Kamailio can received BYE/ACK from UA2. but，Kamailio can't received BYE/ACK from UA1. if in UA1 INVITE, i write KSR.rr.record_route_advertised_address("192.168.0.2"), then Kamailio can received BYE/ACK from UA1, but not from UA2. what can i do, let Kamailio receive BYE/ACK from both sides ？

6 10

[Dialog Module] questions about early_timeout param
by Abdoul Osséni 08 Oct '23

08 Oct '23

Hello all, Can you please clarify part of the following doc for me? -- 6.7. early_timeout (integer) The timeout (in seconds) after which the dialogs in unconfirmed or early state (no final response received) are destroyed. * Default value is “300 (5 minutes)”. * *Example 1.7. Set early_timeout parameter* ... modparam("dialog", "early_timeout", 180) --- In the case where Kamailio acts as an SBC, will kamailio send a SIP BYE message to both devices (UAC and UAC)? Or Can Kamailio send a BYE message to both parties when timer b has expired? If yes, how to do it? Regards Abdoul

1 0

kamailio Behind nat. How Record-Route should be added ？
by 城门虾米 08 Oct '23

08 Oct '23

UA(192.168.0.11) received 183, find Record-Route(36.140.122.12) then send ACK to 36.140.122.12(Kamialio public ip) not 192.168.0.2(kamailio internal ip), so Kamailio can't receive ACK. this is my config，192.168.0.11 -> Kamailio -> Other SBC(public ip) function ksr_request_route() if KSR.is_INVITE() then KSR.rr.record_route(); KSR.nathelper.fix_nated_contact() end end This question has been bothering me for a long time, help me [cid:d1ec74be-1c33-406e-80d5-68663d1cd21f] [cid:bda00d0d-e6e6-4dc9-9462-141ad42b09b8]

1 1

uac_req_send + evroute + crash
by Dr. Barabás Péter 06 Oct '23

06 Oct '23

Hi All, I use kamailio In front of Asterisk and kamailio needs to refresh registrations periodically towards Asterisk to ensure the availability of users from Asterisk side. I use uac module and call uac_req_send() for sending REGISTER requests. I set $uac_req(evroute)=1 The event_route[uac:reply] is called fine, but in kamailio logs I see the next lines: CRITICAL: <core> [core/mem/q_malloc.c:519]: qm_free(): BUG: freeing already freed pointer (0x7f114995ada8), called from uac: uac_send.c: uac_send_tm_callback(860), first free uac: uac_send.c: uac_resend_tm_callback(732) - ignoring After some time, kamailio has crashed. CRITICAL: <core> [core/mem/q_malloc.c:519]: qm_free(): BUG: freeing already freed pointer (0x7f114995ada8), called from uac: uac_send.c: uac_send_tm_callback(860), first free uac: uac_send.c: uac_resend_tm_callback(732) – ignoring CRITICAL: <core> [core/pass_fd.c:277]: receive_fd(): EOF on 34 ALERT: <core> [main.c:774]: handle_sigs(): child process 1407950 exited by a signal 6 Any idea that is it a bug or I use something wrong in config? Thanks in advance! Péter Barabás

2 4

Crypto module AES algorithm details
by Jayesh Nambiar 04 Oct '23

04 Oct '23

*Hello,* I am running kamailio-5.3.4 on one of my setup and I intend to use the crypto module in the same. I wanted to understand the following details when the module is used: I understand it uses the AES algorithm, is that correct? Does it use AES 128, 192 or 256 bit algorithms? Does it use CBC or ECB mode for AES? The 5.3 version does not have an parameter for init-vector, so does kamailio use any init vector internally in this case? When i compared the encrypted text that kamailio produces and the ones available online, they were producing different outputs even when same shared secret was used. Hence asking for more clarification PS: Upgrading kamailio is my very last option as this is one af an old setup which only needs this feature without much changes. Thanks for any valuable response. *-- Jayesh*

2 1

error in parsing HTTP messages
by sigxcpu＠gmail.com 02 Oct '23

02 Oct '23

Hello, In reference to this issue https://github.com/kamailio/kamailio/issues/3081 I've been advised to set http_reply_parse to "no" which I did (and it is the default value anyways). # grep http_reply_parse /etc/kamailio/kamailio.cfg http_reply_parse=no After setting this, I still get these parsing errors: { "idx": 23, "pid": 102, "level": "ERROR", "module": "core", "file": "core/parser/msg_parser.c", "line": 748, "function": "parse_msg", "logprefix": "", "message": "ERROR: parse_msg: message=<HTTP/1.1 100 Continue\r\n\r\nHTTP/1.1 200 OK\r\ndate: Wed, 26 Jul 2023 16:43:19 GMT\r\ncontent-length: 224\r\ncontent-type: text/plain; charset=utf-8\r\n\r\n{\"result\": {\"ruri\":\"\",\"fU\":\"\",\"tU\":\"\",\"privacy\":\"\",\"identity\":\"\",\"error\":{\"code\":0,\"message\":\"\"},\"mb\":\"\",\"Headers\":null,\"encrypted\":\"\",\"sipsScheme\":\"\",\"attestation\":\"\",\"authUser\":\"\",\"authPassword\":\"\",\"disableStirShaken\":\"\"}}>" } Is there anything that I am missing beyond setting that parameter? Thank you, Alexandru

1 1

Jump to page:

2025

2024

2023

2022

2021

2020

2019

2018

2017

2016

2015

2014

2013

2012

2011

2010

2009

2008

2007

2006

2005

2004

2003

2002

sr-users