sr-users March 2016

sr-users@lists.kamailio.org

88 participants
128 discussions

Cannot hear voice with symmetric NAT and STUN
by Khoa Pham 08 Feb '17

08 Feb '17

Hi, I have Kamailio as SIP server and RTP server. Client is PJSIP. I read that STUN is for non-symmetric NAT, and RTP server is for symmetric NAT. Supposed A calls B. If A, B both use symmetric NAT and STUN, they cannot hear each other If A or B use non-symmetric NAT and NOT using STUN, they cannot hear each other. Why is that? I read http://tools.ietf.org/id/draft-takeda-symmetric-nat-traversal-00.txt for Prediction Failure, is that related to this problem ? -- Khoa Pham HCMC University of Science Faculty of Information Technology

8 18

Using the auth_ephemeral module
by Hemanshu Vadehra 17 Jan '17

17 Jan '17

I'm involved in setting up a Kamailio instance and was hoping to make use of the auth_ephemeral module for authentication. But the module documentation doesn't quite make clear how exactly the module is to be employed or the web service set up. Does anyone have a working example? Regards, Hemanshu Vadehra hemanshu.v(a)directi.com

5 8

Kamailio on Mac
by Carlos Ruiz Díaz 04 Aug '16

04 Aug '16

Hi all, I'm switching my development environment from Linux to Mac. Is there any tutorial on how to setup Kamailio on this OS? It may be an Unix flavor, but it's still quite different from Linux :). Thanks, -- Carlos http://caruizdiaz.com http://ngvoice.com +52 55 3048 3303

6 9

Sipcapture on SPARC
by Spencer Thomason 18 May '16

18 May '16

Hello, I’m attempting to deploy a homer sip capture server on SPARC and I’m seeing some strange date related errors: ERROR: db_mysql [km_dbase.c:128]: db_mysql_submit_query(): driver error on query: Incorrect datetime value: '2052-06-12 16:21:06' for column 'date' at row 1 (1292) Is there some sore of endianness issue? Thanks for any assistance! Regards, Spencer

2 3

sdp_remove_line_by_prefix
by Alberto Sagredo 09 May '16

09 May '16

Hi Im trying to remove my Asterisk s= line on SDP but when doing: sdp_remove_line_by_prefix("s=Asterisk"); Nothing happens. Loaded sdpops.so module as well. Is there any additional needed? BR

4 10

t_on_branch_failure never called AND t_relay never fails in a, forked scenario
by Tristan Mahé 03 May '16

03 May '16

Hi fellow kamailio users, I'm playing actually with t_on_branch_failure, in a simultaneous forking scenario ( lookup("location") returns multiple contacts ). Any idea on how to get those "on_branch_failure" working ? Thanks in Advance ! * Test by putting failure_exec_mode: - at 1 => no branch failure being called, never. - at 0 => t_relay does not fail if a single branch answers the transaction, even if all other branches are failing. * Test by moving the t_on_branch_failure("manage_branch_failure"); line before or after the lookup("location") or on a _on_branch route to set it per branch. - The on_route branch are executed, but never the failure one. - tried also with failure_exec_mode = 0 or 1. * Using set_forward_no_connect, I can see in the logs a "Sending to branch X failed" but no failure route being executed. Without it, nothing in the logs indicating that the branch has timeout. * Config extract: # auto-discard branches from previous serial forking leg modparam("tm", "failure_reply_mode", 3) # 3 by default # default retransmission timeout: 30sec modparam("tm", "fr_timer", 30000) # default invite retransmission timeout after 1xx: 120sec modparam("tm", "fr_inv_timer", 120000) modparam("tm", "reparse_on_dns_failover", 0) # 1: Allow branches to have a per branch failure route # 0: t_relay should fail if a branch fail modparam("tm", "failure_exec_mode", 1) # Allow locally generated 408 to be forgotten in case a reply is received. #modparam("tm", "faked_reply_prio", 2000) # USER location service route[LOCATION] { t_on_branch_failure("manage_branch_failure"); if (!lookup("location")) { .... } # Let's get back after 2.5s if no 100/Trying received. t_set_fr(0, 2500); # set_forward_no_connect(); #t_on_branch("SET_BRANCH_FAILURE"); route(RELAY); exit; } route[RELAY] { .... if (!t_relay()) { xlog("L_WARN","$rm|$ci|$fu|$tu|RELAY_FAILED"); sl_reply_error(); } exit(); } # set failure route per branch branch_route[SET_BRANCH_FAILURE] { xlog("L_WARN","$rm|$ci|$fu|$tu|SETTING_BrANCH_FAILURE_ROUTE"); t_on_branch_failure("manage_branch_failure"); } # manage failure routing cases per branch event_route[tm:branch-failure:manage_branch_failure] { xlog("L_WARN","$rm|$ci|$fu|$tu[$avp(dest_to)]|MANAGE_BRANCH_FAILURE"); }

3 2

get_redirects with t_next_contacts
by Marrold 04 Apr '16

04 Apr '16

Hi all, I am having some issues using get_redirects() from the UAC_Redirect module in conjunction with t_next_contacts from the TM Module. I've searched Google and the list but the only references I can find are several years old. I am attempting to configure Kamailio so it if receives a 3XX redirect message, it will store the Contacts it contains, and attempt them in 'Q' parameter order. So for the Contact below- Contact: <sip:10.0.97.21:5060>;q=0.2,<sip:5.29.13.139:5060>;q=0.5. I want Kamailio to try 5.29.13.139, and if that times out, or is rejected in someway, try 10.0.97.21. If I use t_relay rather than t_next_contacts, kamailio branches the calls and relays them in parallel regardless of Q value - this is not what I want. If I use t_next_contacts, it attempts 5.29.13.139 which is rejected with a 401, but it doesn't attempt 5.29.13.139 and responds "408", "Request Timeout MH 2" Relevant script section is below, has anyone been able to get this working? failure_route[302] { if (t_check_status("302")){ xlog("L_ALERT","Failure Route: 302\n$mb"); get_redirects("*"); if (!t_load_contacts()) { send_reply("500", "Server Internal Error - Cannot load contacts MH"); exit; }; if (!t_next_contacts()) { t_reply("408", "Request Timeout MH"); } else { t_on_failure("302"); t_relay(); exit; }; } else if (t_check_status("[456][0-9][0-9]")){ if (!t_next_contacts()) { t_reply("408", "Request Timeout MH 2"); } else { t_on_failure("302"); t_relay(); exit; } } } Thanks, Matthew

1 2

Using 302 redirects with Dispatcher Module
by Marrold 04 Apr '16

04 Apr '16

Hi All, I'd like to use the Dispatcher Module along with 30X redirects, to monitor gateway availability with SIP options and to provide redundancy / fail over. Some sources online suggest it's as easy as - if ( method=="INVITE" ) { dst_select_domain("1","4"); sl_send_reply("300","Redirect"); exit; } However when the 30X reply is sent, it contains no contact header. Please could someone advise if it's possible to use the Dispatcher module with 302 redirects, and what they syntax is? Thanks, Matthew

3 6

SQlite DB Lock with Presence
by Kristian Kielhofner 02 Apr '16

02 Apr '16

Hello everyone, I'm trying to use BLF with the config here (except with SQlite): http://kb.asipto.com/kamailio:presence:k43-blf BLF seems to work perfectly except after the call is ended I get "sqlite commit failed: database is locked" error messages as seen here: http://pastebin.com/xVijj98H BLF is then broken at this point. kamailio -v version: kamailio 4.3.5 (x86_64/linux) 950657 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, DBG_QM_MALLOC, USE_FUTEX, FAST_LOCK-ADAPTIVE_WAIT, USE_PTHREAD_MUTEX, USE_DNS_CACHE, USE_DNS_FAILOVER, USE_NAPTR, USE_DST_BLACKLIST, HAVE_RESOLV_RES ADAPTIVE_WAIT_LOOPS=1024, MAX_RECV_BUFFER_SIZE 262144, MAX_LISTEN 16, MAX_URI_SIZE 1024, BUF_SIZE 65535, DEFAULT PKG_SIZE 8MB poll method support: poll, epoll_lt, epoll_et, sigio_rt, select. id: 950657 compiled on 01:33:01 Mar 29 2016 with x86_64-openwrt-linux-gnu-gcc 4.8.3 Has anyone ever seen this before? Thanks! -- Kristian Kielhofner

3 9

MSRP question
by Hussein Said 02 Apr '16

02 Apr '16

2 4

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 March 2016