sr-users December 2016

sr-users@lists.kamailio.org

71 participants
101 discussions

kamcli - transferring the github repository to kamailio organization
by Daniel-Constantin Mierla 16 Dec '16

16 Dec '16

Hello, kamcli (kamailio command line interface tool written in python) got a consistent set of features trying to become in pair with kamctl. It is currently hosted by asipto organization on github, but I am considering to transfer (move) it to kamailio organization in order to manage easier the access for kamailio devs as well as increase its exposure to community. It interacts with kamailio using rpc commands via jsonrpcs module. You can read more about what it can do at: - https://github.com/asipto/kamcli The commands are implemented in a plugin-like fashion -- see the ones done so far: - https://github.com/asipto/kamcli/tree/master/kamcli/commands Given that it can handle better the jsonrpc responses, provides more options to format the output and the help is embedded in each command, I think it is a good candidate to replace the old shell(bash)-based kamctl. Probably we can adjust kamctl for rpc when mi code will be removed, but the options to build and extend in long term a good cli for kamailio are quite limited in shell. For the sake of an example, here is the implementation of 'ps' command, handling the json rpc to display a very compact list of kamailio processes: - https://github.com/asipto/kamcli/blob/master/kamcli/commands/cmd_ps.py Dealing with database records is also rather trivial: - https://github.com/asipto/kamcli/blob/master/kamcli/commands/cmd_group.py Anyone with comments/suggestions/alternatives? Cheers, Daniel -- Daniel-Constantin Mierla www.twitter.com/miconda -- www.linkedin.com/in/miconda Kamailio World Conference - May 8-10, 2017 - www.kamailioworld.com

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Forwarding Emergency calls based on caller IP address
by João Vitor Torres 15 Dec '16

15 Dec '16

Hello all, I am looking for a solution to forward emergency calls inside an enterprise network. Is there any way to forward calls based on the IP address of caller device? The requirement is that calls to a unique emergency number must be forwarded to specific local numbers in each building, and the IP address of the caller is the criteria for choosing the destination. A table maps IP nets to specific local numbers. The SIP contact header has the caller IP address, but I am new to Kamailio and I am not sure where to start. Any suggestions? Thanks in advance. João Vitor.

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Re: [SR-Users] htable lock - unlock
by Daniel-Constantin Mierla 15 Dec '16

15 Dec '16

Hello, the log message you refer to is inside the if block: if ($sht(pht=>$ci)!=$null) { ... } but you don't set the item in memory, no assignment like: $sht(pht=>$ci) = ...; The sht_lock(pht=>$ci) is just locking the slot where the value of $sht(pht=>$ci) will be stored, but don't store any valye for that variable. Cheers, Daniel On 15/12/2016 11:46, Marino Mileti wrote: > > Hi guys, > > > > I'm going out of mind J > > I've this piece of script inside an "on_reply_route" that captures > only 200OK of INVITE (i would like to save in ht the contact of who > has answered a call) > > > > sht_lock("pht=>$ci"); > > if ($sht(pht=>$ci)!=$null){ > > xlog("L_INFO","Before assignment.."); > > $sht(pht=>$ci)=$var(myvar); > > xlog("L_INFO","Assigned done..."); > > sht_unlock("pht=>$ci"); > > } > > else{ > > xlog("L_INFO","Skipping.."); > > } > > sht_unlock("pht=>$(hdr(Call-ID))"); > > > > The situation is that I never see the "Assigned done" message in log > file... > > > > Is this the right use of sht_lock/sht_unlock method? > > > > /Marino Maria Mileti/// > > /marino.mileti(a)alice.it <mailto:marino.mileti@alice.it>/ > > / / > > /cid:006a01cb6b0e$67eecdae$_CDOSYS2.0//Reduce your energy consumption > and keep polar bears on ice!/ > > > > > > ------------------------------------------------------------------------ > Avast logo > <https://www.avast.com/sig-email?utm_medium=email&utm_source=link&utm_campai…> > > > Questa e-mail è stata controllata per individuare virus con Avast > antivirus. > www.avast.com > <https://www.avast.com/sig-email?utm_medium=email&utm_source=link&utm_campai…> > > > > > > _______________________________________________ > SIP Express Router (SER) and Kamailio (OpenSER) - sr-users mailing list > sr-users(a)lists.sip-router.org > http://lists.sip-router.org/cgi-bin/mailman/listinfo/sr-users -- Daniel-Constantin Mierla www.twitter.com/miconda -- www.linkedin.com/in/miconda Kamailio World Conference - May 8-10, 2017 - www.kamailioworld.com

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Updating to SIREMIS 4.3
by Kevin Greene 15 Dec '16

15 Dec '16

Hello fellow SIP people: I upgraded from SIREMIS 4.2 to 4.3 for my Kamailio system and I now get the error message shown below. Any ideas on how to solve it? I am assuming there was a change on how SIREMIS did a date query and my version of Linux (6.8) or my PHP does not support it as expected. Any help would be useful. Thanks. Kevin [{"target":"ERROR","content":"\n[2016-12-14 22:59:55 (GMT)] An exception occurred while executing this script: \nError message: #2, date(): It is not safe to rely on the system's timezone settings. You are *required* to use the date.timezone setting or the date_default_timezone_set() function. In case you used any of those methods and you are still getting this warning, you most likely misspelled the timezone identifier. We selected 'UTC' for 'UTC\/0.0\/no DST' instead<\/font> \nScript name and line number of error: \/var\/www\/siremis-4.3.0\/openbiz\/bin\/service\/logService.php:160<\/font> \n *function:<\/b> errorHandler ( 2, \"date(): It is not safe to rely on the system's timezone settings...\", \"\/var\/www\/siremis-4.3.0\/openbiz\/bin\/service\/logService.php\", 160, Array(8) ) @ \/var\/www\/siremis-4.3.0\/openbiz\/bin\/sysheader.inc 117\n *function:<\/b> userErrorHandler ( 2, \"date(): It is not safe to rely on the system's timezone settings...\", \"\/var\/www\/siremis-4.3.0\/openbiz\/bin\/service\/logService.php\", 160, Array(8) ) @ \n *function:<\/b> date ( \"m\/d\/Y\" ) @ \/var\/www\/siremis-4.3.0\/openbiz\/bin\/service\/logService.php 160\n The "date" command returns: $ date Thu Dec 15 01:13:41 UTC 2016 The /etc/localtime entry is: $ more /etc/localtime TZif2 UTC $ which php /usr/bin/php $ php -version PHP 5.3.3 (cli) (built: Aug 11 2016 13:38:15) Copyright (c) 1997-2010 The PHP Group Zend Engine v2.3.0, Copyright (c) 1998-2010 Zend Technologies PHP I am using is the latest patched version I have. ***

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htable lock - unlock
by Marino Mileti 15 Dec '16

15 Dec '16

Hi guys, I'm going out of mind J I've this piece of script inside an "on_reply_route" that captures only 200OK of INVITE (i would like to save in ht the contact of who has answered a call) sht_lock("pht=>$ci"); if ($sht(pht=>$ci)!=$null){ xlog("L_INFO","Before assignment.."); $sht(pht=>$ci)=$var(myvar); xlog("L_INFO","Assigned done..."); sht_unlock("pht=>$ci"); } else{ xlog("L_INFO","Skipping.."); } sht_unlock("pht=>$(hdr(Call-ID))"); The situation is that I never see the "Assigned done" message in log file... Is this the right use of sht_lock/sht_unlock method? Marino Maria Mileti <mailto:marino.mileti@alice.it> marino.mileti(a)alice.it cid:006a01cb6b0e$67eecdae$_CDOSYS2.0Reduce your energy consumption and keep polar bears on ice! --- Questa e-mail è stata controllata per individuare virus con Avast antivirus. https://www.avast.com/antivirus

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Kamailio 4.3 Rewriting From and db_alias values
by Gonzalo Gasca Meza 15 Dec '16

15 Dec '16

Hi forum, This is the scenario: VM <- Kamailio -> SP1 ----- SP2 ---- PhoneA (john) PhoneB PhoneA is configured in *dbaliases* table: alias_username, alias_domain, username, domain 11111111, sp1.com, john, sp2.com When PhoneB dials 1111111, Kamailio converts 111111(a)sp1.com to john(a)sp2.com Now I need to provide VM services to PhoneA. (Opposite direction) PhoneA calls voicemail but the calling number is john(a)sp2.com I need to have SP1 use the 11111111(a)sp1.com format How can I overwrite the From? Pseudo algorithm ------------------------ If destination is VM and from domain ($fU) is sp2.com: Find user URI: ( In this case john extracted from john(a)sp2.com in dbaliases) If user is found: rewrite From URI: use alias_username@alias_domain I'm using default kamailio.cfg and calls successfully are forwarded to VM Thank you

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Question on multiple 200OK received after forking
by Marino Mileti 14 Dec '16

14 Dec '16

Hi guys, I've a Kamailio instance listening on both eth0 and wlan0. Kamailio forks call to two branches, so both clients rings together. In case (very very very rare J) of simultaneous answers is there any way to kill/hangup/destroy/cancel the "slowest" leg? I've tried to arrange a semaphore with lock/unlock capabilities of cfgutils, I've used the drop command but client still sending the 200OK because it's waiting for an ACK L Any help will be very appreciated J Marino Maria Mileti <mailto:marino.mileti@alice.it> marino.mileti(a)alice.it cid:006a01cb6b0e$67eecdae$_CDOSYS2.0Reduce your energy consumption and keep polar bears on ice! --- Questa e-mail è stata controllata per individuare virus con Avast antivirus. https://www.avast.com/antivirus

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question on call cancel
by Kelvin Chua 14 Dec '16

14 Dec '16

I have a peculiar scenario, maybe you guys have an easy solution: 1. a call comes in through an SBC (which is also kamailio) 2. SBC passes call to core kamailio server 3. call reaches 180 ringing state 4. client suddenly changes from wifi to 4G (using 4G IP, VIA headers are all updated) 5. client sends cancel and receives cancelling msg from SBC 6. SBC sends cancel to kamailio core 7. kamailio core sends back Request Terminated after termination the issue is, this message was sent to the wifi IP not the 4G when checking the network dumps, looks like this was because the INVITE was received on kamailio core from the old wifi IP. Is there maybe a way to update the transaction perhaps? Kelvin Chua

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Multi-Domain dispatcher
by Satish Patel 14 Dec '16

14 Dec '16

We have currently dispatcher running for single domain, but in future we have more domain coming so i want to do multi domain dispatching for example dispatcher redirect request for foo.com to foo.registar and bar.com to bar.registar SIP server currently we have following code in dispatcher logic. what should we do to handle multi-domain if(!ds_select_dst("1", "2")) { # if we are here that means no destination is available. We notify the user by 404 and exit the script. xlog("L_NOTICE", "No destination available!"); send_reply("404", "No destination"); exit; }

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regular expression question
by Satish Patel 14 Dec '16

14 Dec '16

I am trying to block SIP scanner so i am trying to use following logic only allow "My-UserAgent" and block rest but its throwing error, but if i use =~ regular expression which works! why negative match doesn't work? if($ua !~ "(My-UserAgent") { xlog("L_INFO","On more scriptkiddie, coming from $si, blocking"); exit; } what could be wrong here?

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sr-users December 2016