Hello,

I haven't encountered such problem so far and no similar report was done to kamailio project recently. I noticed that newer versions of mysql (maybe mariadb as well) are behaving differently than old ones -- what mariadb version do you run?

Cheers, Daniel

On 08/11/16 10:42, Grant Bagdasarian wrote:

Hi Daniel,

Sorry for the late reply.

We’re using a Galera Cluster based on Maria DB.

Regards,

Grant Bagdasarian

*From:*sr-users [mailto:sr-users-bounces@lists.sip-router.org] *On Behalf Of *Daniel-Constantin Mierla *Sent:* donderdag 6 oktober 2016 12:50 *To:* Kamailio (SER) - Users Mailing List sr-users@lists.sip-router.org *Subject:* Re: [SR-Users] usrloc module expires column issues

Hello,

what database server are you using?

Cheers, Daniel

On 26/09/16 16:50, Grant Bagdasarian wrote:

Hello,



When saving in the location table, the expires and last_modified
columns contain the value 000-00-00 00:00:00 which causes issues
when Kamailio is restarted and the preload modparam is set to load
the location table from db in memory at startup.

I’ve already upgraded Kamailio to 4.4.3, and used the dbtables
script from version 4.4 to recreate the location table, but
without success.



Anyone else having this issue? Any resolution for it?



Regards,



Grant Bagdasarian

CM




_______________________________________________

SIP Express Router (SER) and Kamailio (OpenSER) - sr-users mailing list

sr-users@lists.sip-router.org <mailto:sr-users@lists.sip-router.org>

http://lists.sip-router.org/cgi-bin/mailman/listinfo/sr-users

-- Daniel-Constantin Mierla http://twitter.com/#!/miconda http://twitter.com/#%21/miconda - http://www.linkedin.com/in/miconda Kamailio Advanced Training, Berlin, Oct 24-26, 2016 - http://www.asipto.com

Hello,

the version I noticed some changes in dealing with unsigned int values was 5.7 ...

Can you enable sql query logging and see what's the insert statement for location table? Or, if the connection to the database server is over IP (and not tls), then you can do ngrep on port 3306 (iirc by heart the default port for mysql) -- you should be able to spot the text query along some binary headers.

It would be good to see if the sql is ok or broken, to know where to look further.

Cheers, Daniel

On 08/11/16 11:36, Grant Bagdasarian wrote:

Hi Daniel,

My apologies, we’re not running MariaDB, but a regular instance of MySQL:

mysql -v

mysql Ver 14.14 Distrib 5.5.49, for debian-linux-gnu (x86_64) using readline 6.3

Regards,

Grant

*From:*Daniel-Constantin Mierla [mailto:miconda@gmail.com] *Sent:* dinsdag 8 november 2016 11:32 *To:* Grant Bagdasarian gb@cm.nl; Kamailio (SER) - Users Mailing List sr-users@lists.sip-router.org *Subject:* Re: [SR-Users] usrloc module expires column issues

Hello,

I haven't encountered such problem so far and no similar report was done to kamailio project recently. I noticed that newer versions of mysql (maybe mariadb as well) are behaving differently than old ones -- what mariadb version do you run?

Cheers, Daniel

On 08/11/16 10:42, Grant Bagdasarian wrote:

Hi Daniel,



Sorry for the late reply.

We’re using a Galera Cluster based on Maria DB.



Regards,



Grant Bagdasarian





*From:*sr-users [mailto:sr-users-bounces@lists.sip-router.org] *On
Behalf Of *Daniel-Constantin Mierla
*Sent:* donderdag 6 oktober 2016 12:50
*To:* Kamailio (SER) - Users Mailing List
<sr-users@lists.sip-router.org> <mailto:sr-users@lists.sip-router.org>
*Subject:* Re: [SR-Users] usrloc module expires column issues



Hello,

what database server are you using?

Cheers,
Daniel



On 26/09/16 16:50, Grant Bagdasarian wrote:

    Hello,



    When saving in the location table, the expires and
    last_modified columns contain the value 000-00-00 00:00:00
    which causes issues when Kamailio is restarted and the preload
    modparam is set to load the location table from db in memory
    at startup.

    I’ve already upgraded Kamailio to 4.4.3, and used the dbtables
    script from version 4.4 to recreate the location table, but
    without success.



    Anyone else having this issue? Any resolution for it?



    Regards,



    Grant Bagdasarian

    CM





    _______________________________________________

    SIP Express Router (SER) and Kamailio (OpenSER) - sr-users mailing list

    sr-users@lists.sip-router.org
    <mailto:sr-users@lists.sip-router.org>

    http://lists.sip-router.org/cgi-bin/mailman/listinfo/sr-users




-- 

Daniel-Constantin Mierla

http://twitter.com/#!/miconda <http://twitter.com/#%21/miconda> - http://www.linkedin.com/in/miconda

Kamailio Advanced Training, Berlin, Oct 24-26, 2016 - http://www.asipto.com

-- Daniel-Constantin Mierla http://twitter.com/#!/miconda http://twitter.com/#%21/miconda - http://www.linkedin.com/in/miconda Kamailio Advanced Training, Berlin, Nov 28-30, 2016 - http://www.asipto.com

Hello,

so it seems that inserting a timestamp value to a datetime column is no longer accepted, but no complaints in the syslog that value is invalid or db operation has failed, right? Nice behaviour from db server, I would say ...

An option for now could be setting expires_type to bigint:

https://www.kamailio.org/docs/modules/stable/modules/usrloc.html#usrloc.p.ex...

But this kind of behaviour for datetime from database server needs to be analyzed for several modules and fixed if it's the case.

Cheers, Daniel

On 08/11/16 14:33, Grant Bagdasarian wrote:

Hi Daniel,

Nice tip!

I noticed the following:

The expires and last_modified columns are of DATETIME type, but the insert and update statements pass a unix timestamp.

I can change the datatype to a varchar for the expires and last_modified columns, but I’m not sure if I will break the usrloc module when preloading the rows.

kamailio -V

version: kamailio 4.4.3 (x86_64/linux) 5a2195

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_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: 5a2195

compiled on 16:42:49 Sep 26 2016 with gcc 4.9.2

cat /usr/local/src/kamailio-4.4.3/utils/kamctl/mysql/usrloc-create.sql

CREATE TABLE `location` (

`id` INT(10) UNSIGNED AUTO_INCREMENT PRIMARY KEY NOT NULL,

`ruid` VARCHAR(64) DEFAULT '' NOT NULL,

`username` VARCHAR(64) DEFAULT '' NOT NULL,

`domain` VARCHAR(64) DEFAULT NULL,

`contact` VARCHAR(255) DEFAULT '' NOT NULL,

`received` VARCHAR(128) DEFAULT NULL,

`path` VARCHAR(512) DEFAULT NULL,

`expires` DATETIME DEFAULT '2030-05-28 21:32:15' NOT NULL,

`q` FLOAT(10,2) DEFAULT 1.0 NOT NULL,

`callid` VARCHAR(255) DEFAULT 'Default-Call-ID' NOT NULL,

`cseq` INT(11) DEFAULT 1 NOT NULL,

`last_modified` DATETIME DEFAULT '1900-01-01 00:00:01' NOT NULL,

`flags` INT(11) DEFAULT 0 NOT NULL,

`cflags` INT(11) DEFAULT 0 NOT NULL,

`user_agent` VARCHAR(255) DEFAULT '' NOT NULL,

`socket` VARCHAR(64) DEFAULT NULL,

`methods` INT(11) DEFAULT NULL,

`instance` VARCHAR(255) DEFAULT NULL,

`reg_id` INT(11) DEFAULT 0 NOT NULL,

`server_id` INT(11) DEFAULT 0 NOT NULL,

`connection_id` INT(11) DEFAULT 0 NOT NULL,

`keepalive` INT(11) DEFAULT 0 NOT NULL,

`partition` INT(11) DEFAULT 0 NOT NULL,

CONSTRAINT ruid_idx UNIQUE (`ruid`)

);

insert into `location` (`username`,`contact`,`expires`,`q`,`callid`,`cseq`,`flags`,`cflags`,`user_agent`,`received`,`path`,`socket`,`methods`,`last_modified`,`ruid`,`instance`,`reg_id`,`server_id`,`connection_id`,`keepalive`,`partition`,`domain` )

values ('sip-server-ivr-01','sip:s@1.1.1.1:5060',1478611664,1.000000 ,'56b9ca823f9a11d361e184cc5eed07fc@1.1.1.1',15819,0,0,'Asterisk PBX 13.9.1',NULL,NULL,'udp:10.14.34.211:5060',NULL,1478611563,'uloc-5821d267-22ed-1',NULL,0,0,-1,0,0,'sip-server-gw-01.test.voipdomain.local')

update `location` set `path`=NULL,`expires`=1478611744,`q`=1.000000 ,`cseq`=15821,`flags`=0,`cflags`=0,`user_agent`='Asterisk PBX 13.9.1',`received`=NULL,`socket`='udp:10.14.34.211:5060',`methods`=NULL,`last_modified`=14786116

49,`ruid`='uloc-5821d267-22ed-1',`instance`=NULL,`reg_id`=0,`server_id`=0,`connection_id`=-1,`keepalive`=0,`contact`='sip:s@1.1.1.1:5060' where `username`='sip-server-ivr-01' AND `contact`='sip:s@1.1.1.1:5060' AND `call

id`='56b9ca823f9a11d361e184cc5eed07fc@1.1.1.1' AND `domain`='sip-server-gw-01.test.voipdomain.local'

*From:*Daniel-Constantin Mierla [mailto:miconda@gmail.com] *Sent:* dinsdag 8 november 2016 12:38 *To:* Grant Bagdasarian gb@cm.nl; Kamailio (SER) - Users Mailing List sr-users@lists.sip-router.org *Subject:* Re: [SR-Users] usrloc module expires column issues

Hello,

the version I noticed some changes in dealing with unsigned int values was 5.7 ...

Can you enable sql query logging and see what's the insert statement for location table? Or, if the connection to the database server is over IP (and not tls), then you can do ngrep on port 3306 (iirc by heart the default port for mysql) -- you should be able to spot the text query along some binary headers.

It would be good to see if the sql is ok or broken, to know where to look further.

Cheers, Daniel

On 08/11/16 11:36, Grant Bagdasarian wrote:

Hi Daniel,



My apologies, we’re not running MariaDB, but a regular instance of
MySQL:



mysql -v

mysql  Ver 14.14 Distrib 5.5.49, for debian-linux-gnu (x86_64)
using readline 6.3



Regards,



Grant



*From:*Daniel-Constantin Mierla [mailto:miconda@gmail.com]
*Sent:* dinsdag 8 november 2016 11:32
*To:* Grant Bagdasarian <gb@cm.nl> <mailto:gb@cm.nl>; Kamailio
(SER) - Users Mailing List <sr-users@lists.sip-router.org>
<mailto:sr-users@lists.sip-router.org>
*Subject:* Re: [SR-Users] usrloc module expires column issues



Hello,

I haven't encountered such problem so far and no similar report
was done to kamailio project recently. I noticed that newer
versions of mysql (maybe mariadb as well) are behaving differently
than old ones -- what mariadb version do you run?

Cheers,
Daniel



On 08/11/16 10:42, Grant Bagdasarian wrote:

    Hi Daniel,



    Sorry for the late reply.

    We’re using a Galera Cluster based on Maria DB.



    Regards,



    Grant Bagdasarian





    *From:*sr-users [mailto:sr-users-bounces@lists.sip-router.org]
    *On Behalf Of *Daniel-Constantin Mierla
    *Sent:* donderdag 6 oktober 2016 12:50
    *To:* Kamailio (SER) - Users Mailing List
    <sr-users@lists.sip-router.org>
    <mailto:sr-users@lists.sip-router.org>
    *Subject:* Re: [SR-Users] usrloc module expires column issues



    Hello,

    what database server are you using?

    Cheers,
    Daniel



    On 26/09/16 16:50, Grant Bagdasarian wrote:

        Hello,



        When saving in the location table, the expires and
        last_modified columns contain the value 000-00-00 00:00:00
        which causes issues when Kamailio is restarted and the
        preload modparam is set to load the location table from db
        in memory at startup.

        I’ve already upgraded Kamailio to 4.4.3, and used the
        dbtables script from version 4.4 to recreate the location
        table, but without success.



        Anyone else having this issue? Any resolution for it?



        Regards,



        Grant Bagdasarian

        CM






        _______________________________________________

        SIP Express Router (SER) and Kamailio (OpenSER) - sr-users mailing list

        sr-users@lists.sip-router.org
        <mailto:sr-users@lists.sip-router.org>

        http://lists.sip-router.org/cgi-bin/mailman/listinfo/sr-users





    -- 

    Daniel-Constantin Mierla

    http://twitter.com/#!/miconda <http://twitter.com/#%21/miconda> - http://www.linkedin.com/in/miconda

    Kamailio Advanced Training, Berlin, Oct 24-26, 2016 - http://www.asipto.com




-- 

Daniel-Constantin Mierla

http://twitter.com/#!/miconda <http://twitter.com/#%21/miconda> - http://www.linkedin.com/in/miconda

Kamailio Advanced Training, Berlin, Nov 28-30, 2016 - http://www.asipto.com

-- Daniel-Constantin Mierla http://twitter.com/#!/miconda http://twitter.com/#%21/miconda - http://www.linkedin.com/in/miconda Kamailio Advanced Training, Berlin, Nov 28-30, 2016 - http://www.asipto.com

Hello,

ok -- that's clear an issue due to new rules with latest versions of mysql, definitely we need to investigate a bit more in this direction.

Cheers, Daniel

On 10/11/16 08:56, Grant Bagdasarian wrote:

Hi Daniel,

Thank you! Changing to bigint in the DB fixed it. Both expires and last_modified now contain a unix timestamp.

Reloading also works now!

Regards,

Grant Bagdasarian

CM

*From:*Daniel-Constantin Mierla [mailto:miconda@gmail.com] *Sent:* dinsdag 8 november 2016 14:58 *To:* Grant Bagdasarian gb@cm.nl; Kamailio (SER) - Users Mailing List sr-users@lists.sip-router.org *Subject:* Re: [SR-Users] usrloc module expires column issues

Hello,

so it seems that inserting a timestamp value to a datetime column is no longer accepted, but no complaints in the syslog that value is invalid or db operation has failed, right? Nice behaviour from db server, I would say ...

An option for now could be setting expires_type to bigint:

https://www.kamailio.org/docs/modules/stable/modules/usrloc.html#usrloc.p.ex...

But this kind of behaviour for datetime from database server needs to be analyzed for several modules and fixed if it's the case.

Cheers, Daniel

On 08/11/16 14:33, Grant Bagdasarian wrote:

Hi Daniel,



Nice tip!



I noticed the following:



The expires and last_modified columns are of DATETIME type, but
the insert and update statements pass a unix timestamp.



I can change the datatype to a varchar for the expires and
last_modified columns, but I’m not sure if I will break the usrloc
module when preloading the rows.



kamailio -V

version: kamailio 4.4.3 (x86_64/linux) 5a2195

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_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: 5a2195

compiled on 16:42:49 Sep 26 2016 with gcc 4.9.2



cat /usr/local/src/kamailio-4.4.3/utils/kamctl/mysql/usrloc-create.sql

CREATE TABLE `location` (

    `id` INT(10) UNSIGNED AUTO_INCREMENT PRIMARY KEY NOT NULL,

    `ruid` VARCHAR(64) DEFAULT '' NOT NULL,

    `username` VARCHAR(64) DEFAULT '' NOT NULL,

    `domain` VARCHAR(64) DEFAULT NULL,

    `contact` VARCHAR(255) DEFAULT '' NOT NULL,

    `received` VARCHAR(128) DEFAULT NULL,

    `path` VARCHAR(512) DEFAULT NULL,

    `expires` DATETIME DEFAULT '2030-05-28 21:32:15' NOT NULL,

    `q` FLOAT(10,2) DEFAULT 1.0 NOT NULL,

    `callid` VARCHAR(255) DEFAULT 'Default-Call-ID' NOT NULL,

    `cseq` INT(11) DEFAULT 1 NOT NULL,

    `last_modified` DATETIME DEFAULT '1900-01-01 00:00:01' NOT NULL,

    `flags` INT(11) DEFAULT 0 NOT NULL,

    `cflags` INT(11) DEFAULT 0 NOT NULL,

    `user_agent` VARCHAR(255) DEFAULT '' NOT NULL,

    `socket` VARCHAR(64) DEFAULT NULL,

    `methods` INT(11) DEFAULT NULL,

    `instance` VARCHAR(255) DEFAULT NULL,

    `reg_id` INT(11) DEFAULT 0 NOT NULL,

    `server_id` INT(11) DEFAULT 0 NOT NULL,

    `connection_id` INT(11) DEFAULT 0 NOT NULL,

    `keepalive` INT(11) DEFAULT 0 NOT NULL,

    `partition` INT(11) DEFAULT 0 NOT NULL,

    CONSTRAINT ruid_idx UNIQUE (`ruid`)

);



insert into `location`
(`username`,`contact`,`expires`,`q`,`callid`,`cseq`,`flags`,`cflags`,`user_agent`,`received`,`path`,`socket`,`methods`,`last_modified`,`ruid`,`instance`,`reg_id`,`server_id`,`connection_id`,`keepalive`,`partition`,`domain`
)

values
('sip-server-ivr-01','sip:s@1.1.1.1:5060',1478611664,1.000000
<sip:s@1.1.1.1:5060%27,1478611664,1.000000> 
,'56b9ca823f9a11d361e184cc5eed07fc@1.1.1.1
<mailto:56b9ca823f9a11d361e184cc5eed07fc@1.1.1.1>',15819,0,0,'Asterisk
PBX
13.9.1',NULL,NULL,'udp:10.14.34.211:5060',NULL,1478611563,'uloc-5821d267-22ed-1',NULL,0,0,-1,0,0,'sip-server-gw-01.test.voipdomain.local
<udp:10.14.34.211:5060%27,NULL,1478611563,%27uloc-5821d267-22ed-1%27,NULL,0,0,-1,0,0,%27sip-server-gw-01.test.voipdomain.local>')



update `location` set
`path`=NULL,`expires`=1478611744,`q`=1.000000 
,`cseq`=15821,`flags`=0,`cflags`=0,`user_agent`='Asterisk PBX
13.9.1',`received`=NULL,`socket`='udp:10.14.34.211:5060',`methods`=NULL,`last_modified`=14786116


49,`ruid`='uloc-5821d267-22ed-1',`instance`=NULL,`reg_id`=0,`server_id`=0,`connection_id`=-1,`keepalive`=0,`contact`='sip:s@1.1.1.1:5060'
where `username`='sip-server-ivr-01' AND
`contact`='sip:s@1.1.1.1:5060' AND `call

  id`='56b9ca823f9a11d361e184cc5eed07fc@1.1.1.1
<mailto:56b9ca823f9a11d361e184cc5eed07fc@1.1.1.1>' AND
`domain`='sip-server-gw-01.test.voipdomain.local'





*From:*Daniel-Constantin Mierla [mailto:miconda@gmail.com]
*Sent:* dinsdag 8 november 2016 12:38
*To:* Grant Bagdasarian <gb@cm.nl> <mailto:gb@cm.nl>; Kamailio
(SER) - Users Mailing List <sr-users@lists.sip-router.org>
<mailto:sr-users@lists.sip-router.org>
*Subject:* Re: [SR-Users] usrloc module expires column issues



Hello,

the version I noticed some changes in dealing with unsigned int
values was 5.7 ...

Can you enable sql query logging and see what's the insert
statement for location table? Or, if the connection to the
database server is over IP (and not tls), then you can do ngrep on
port 3306 (iirc by heart the default port for mysql) -- you should
be able to spot the text query along some binary headers.

It would be good to see if the sql is ok or broken, to know where
to look further.

Cheers,
Daniel



On 08/11/16 11:36, Grant Bagdasarian wrote:

    Hi Daniel,



    My apologies, we’re not running MariaDB, but a regular
    instance of MySQL:



    mysql -v

    mysql  Ver 14.14 Distrib 5.5.49, for debian-linux-gnu (x86_64)
    using readline 6.3



    Regards,



    Grant



    *From:*Daniel-Constantin Mierla [mailto:miconda@gmail.com]
    *Sent:* dinsdag 8 november 2016 11:32
    *To:* Grant Bagdasarian <gb@cm.nl> <mailto:gb@cm.nl>; Kamailio
    (SER) - Users Mailing List <sr-users@lists.sip-router.org>
    <mailto:sr-users@lists.sip-router.org>
    *Subject:* Re: [SR-Users] usrloc module expires column issues



    Hello,

    I haven't encountered such problem so far and no similar
    report was done to kamailio project recently. I noticed that
    newer versions of mysql (maybe mariadb as well) are behaving
    differently than old ones -- what mariadb version do you run?

    Cheers,
    Daniel



    On 08/11/16 10:42, Grant Bagdasarian wrote:

        Hi Daniel,



        Sorry for the late reply.

        We’re using a Galera Cluster based on Maria DB.



        Regards,



        Grant Bagdasarian





        *From:*sr-users
        [mailto:sr-users-bounces@lists.sip-router.org] *On Behalf
        Of *Daniel-Constantin Mierla
        *Sent:* donderdag 6 oktober 2016 12:50
        *To:* Kamailio (SER) - Users Mailing List
        <sr-users@lists.sip-router.org>
        <mailto:sr-users@lists.sip-router.org>
        *Subject:* Re: [SR-Users] usrloc module expires column issues



        Hello,

        what database server are you using?

        Cheers,
        Daniel



        On 26/09/16 16:50, Grant Bagdasarian wrote:

            Hello,



            When saving in the location table, the expires and
            last_modified columns contain the value 000-00-00
            00:00:00 which causes issues when Kamailio is
            restarted and the preload modparam is set to load the
            location table from db in memory at startup.

            I’ve already upgraded Kamailio to 4.4.3, and used the
            dbtables script from version 4.4 to recreate the
            location table, but without success.



            Anyone else having this issue? Any resolution for it?



            Regards,



            Grant Bagdasarian

            CM







            _______________________________________________

            SIP Express Router (SER) and Kamailio (OpenSER) - sr-users mailing list

            sr-users@lists.sip-router.org
            <mailto:sr-users@lists.sip-router.org>

            http://lists.sip-router.org/cgi-bin/mailman/listinfo/sr-users






        -- 

        Daniel-Constantin Mierla

        http://twitter.com/#!/miconda
        <http://twitter.com/#%21/miconda> - http://www.linkedin.com/in/miconda

        Kamailio Advanced Training, Berlin, Oct 24-26, 2016 - http://www.asipto.com





    -- 

    Daniel-Constantin Mierla

    http://twitter.com/#!/miconda <http://twitter.com/#%21/miconda> - http://www.linkedin.com/in/miconda

    Kamailio Advanced Training, Berlin, Nov 28-30, 2016 - http://www.asipto.com




-- 

Daniel-Constantin Mierla

http://twitter.com/#!/miconda <http://twitter.com/#%21/miconda> - http://www.linkedin.com/in/miconda

Kamailio Advanced Training, Berlin, Nov 28-30, 2016 - http://www.asipto.com

-- Daniel-Constantin Mierla http://twitter.com/#!/miconda http://twitter.com/#%21/miconda - http://www.linkedin.com/in/miconda Kamailio Advanced Training, Berlin, Nov 28-30, 2016 - http://www.asipto.com