19 Apr
2013
19 Apr
'13
10:43 a.m.
Hi!
whats difference $var() and $avp()?
--
SY,
Victor
JID: coyote(a)bks.tv
JID: coyote(a)bryansktel.ru
I use FREE operation system: 3.8.4-calculate GNU/Linux
19 Apr
19 Apr
10:54 a.m.
Victor V. Kustov writes:
whats difference $var() and $avp()?
see
http://www.kamailio.org/wiki/cookbooks/devel/pseudovariables
-- juha
10:54 a.m.
On 04/19/2013 11:43 AM, Victor V. Kustov wrote:
Hi!
whats difference $var() and $avp()?
$var() - is bound to a kamailio process. If you set $var(xxx) for a one
request/reply, it will be available during processing other messages.
$avp() - is bound to a transaction. If you set $avp(xxx) for an INVITE,
it will be available for replies for that INVITE if it was sent in a
stateful way (t_relay)
10:56 a.m.
19 apr 2013 kl. 10:43 skrev "Victor V. Kustov" <coyote(a)bks.tv>tv>:
Hi!
whats difference $var() and $avp()?
There's a whole set of differences.
- $var is stored in process memory.
- $avp is stored in transactions (in shared memory), so if you set them while processing a
request you have them when processing responses and failures.
- avp's are stacks, so you can store a set of data in them, not just one value.
You can find out more details in the core cookbok on the web site.
/O
10:57 a.m.
19 apr 2013 kl. 10:54 skrev Vitaliy Aleksandrov <vitalik.voip(a)gmail.com>om>:
On 04/19/2013 11:43 AM, Victor V. Kustov wrote:
Right - but
only in that process.
/O
Hi!
whats difference $var() and $avp()?
$var() - is bound to a kamailio process. If you set $var(xxx) for a one
request/reply, it will be available during processing other messages. 
1:26 p.m.
You can have arrays of $vars too, though that is probably not what you meant by
"stacks".
"Olle E. Johansson" <oej(a)edvina.net> wrote:
19 apr 2013 kl. 10:43 skrev "Victor V. Kustov" <coyote(a)bks.tv>tv>:
--
Sent from my Nexus 10, with all the figments of autocorrect that might imply.
Alex Balashov - Principal
Evariste Systems LLC
235 E Ponce de Leon Ave
Suite 106
Decatur, GA 30030
United States
Tel: +1-678-954-0670
Web: http://www.evaristesys.com/, http://www.alexbalashov.com/
Hi!
whats difference $var() and $avp()?
There's a whole set of differences.
- $var is stored in process memory.
- $avp is stored in transactions (in shared memory), so if you set them
while processing a request you have them when processing responses and
failures.
- avp's are stacks, so you can store a set of data in them, not just
one value.
You can find out more details in the core cookbok on the web site.
/O
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1:52 p.m.
В Fri, 19 Apr 2013 11:54:18 +0300
Juha Heinanen <jh(a)tutpro.com> пишет:
I think info from all comments in this thread must be included in
cookbook. Without such layer, without conceptual things it not 'book',
just remarks on fields.
--
SY,
Victor
JID: coyote(a)bks.tv
JID: coyote(a)bryansktel.ru
I use FREE operation system: 3.8.4-calculate GNU/Linux
1:55 p.m.
19 apr 2013 kl. 13:52 skrev "Victor V. Kustov" <coyote(a)bks.tv>tv>:
В Fri, 19 Apr 2013 11:54:18 +0300
Juha Heinanen <jh(a)tutpro.com> пишет:
I think info from all comments in this thread must be included in
cookbook. Without such layer, without conceptual things it not 'book',
just remarks on fields.
Please tell me what's missing from that page and I'll update. I don't
see anything missing myself, but I could be documentation-blind,
having spent so much time with it.
Thanks,
/O
1:55 p.m.
That is a general - and highly valid - objection to the state of Kamailio documentation.
By and large, it's a reference, with no conceptual glue, in narrative form, or
methodological instruction. There is only information on how to do X, not what X is or why
you would want to do it.
We are trying to change that. Progress is slow, undeniably.
"Victor V. Kustov" <coyote(a)bks.tv> wrote:
В Fri, 19 Apr 2013 11:54:18 +0300
Juha Heinanen <jh(a)tutpro.com> пишет:
I think info from all comments in this thread must be included in
cookbook. Without such layer, without conceptual things it not 'book',
just remarks on fields.
--
SY,
Victor
JID: coyote(a)bks.tv
JID: coyote(a)bryansktel.ru
I use FREE operation system: 3.8.4-calculate GNU/Linux
_______________________________________________
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
--
Sent from my Nexus 10, with all the figments of autocorrect that might imply.
Alex Balashov - Principal
Evariste Systems LLC
235 E Ponce de Leon Ave
Suite 106
Decatur, GA 30030
United States
Tel: +1-678-954-0670
Web: http://www.evaristesys.com/, http://www.alexbalashov.com/
2:26 p.m.
В Fri, 19 Apr 2013 13:55:37 +0200
"Olle E. Johansson" <oej(a)edvina.net> пишет:
Please tell me what's missing from that page and
I'll update. I don't
see anything missing myself, but I could be documentation-blind,
having spent so much time with it.
What is $avp?
What is $var?
Whats the difference between that things?
When I need use $avp?
When I need use $var?
Blackhole: concept model. Look, I spent more than month and make too
little, 'cause two things: no concept model + megatons of outdated
examples.
More than month. Any other system already would work. For example
freeswitch. But I believe than Kamailio - has higher potential. Make
less level of occurrence. Write good documentation. Existing is
catastrophically incomplete.
Main question "How it work?" had partially answer for modules and no
answer at all on whole system.
--
SY,
Victor
JID: coyote(a)bks.tv
JID: coyote(a)bryansktel.ru
I use FREE operation system: 3.8.4-calculate GNU/Linux
2:28 p.m.
On 04/19/2013 08:26 AM, Victor V. Kustov wrote:
What is $avp?
What is $var?
Whats the difference between that things?
When I need use $avp?
When I need use $var?
Blackhole: concept model. Look, I spent more than month and make too
little, 'cause two things: no concept model + megatons of outdated
examples.
More than month. Any other system already would work. For example
freeswitch. But I believe than Kamailio - has higher potential. Make
less level of occurrence. Write good documentation. Existing is
catastrophically incomplete.
Main question "How it work?" had partially answer for modules and no
answer at all on whole system.
I can't speak for everyone centrally involved with the project, but from
my perspective, yes, I absolutely agree. This is a serious problem and
its biggest obstacle to more widespread adoption.
--
Alex Balashov - Principal
Evariste Systems LLC
235 E Ponce de Leon Ave
Suite 106
Decatur, GA 30030
United States
Tel: +1-678-954-0670
Web: http://www.evaristesys.com/, http://www.alexbalashov.com/
2:46 p.m.
19 apr 2013 kl. 14:26 skrev "Victor V. Kustov" <coyote(a)bks.tv>tv>:
В Fri, 19 Apr 2013 13:55:37 +0200
"Olle E. Johansson" <oej(a)edvina.net> пишет:
These two are clearly answered
Please tell me what's missing from that page
and I'll update. I don't
see anything missing myself, but I could be documentation-blind,
having spent so much time with it.
What is $avp?
What is $var? Whats the difference between that things?
When I need use $avp?
When I need use $var?
These needs to be worked on.
Blackhole: concept model. Look, I spent more than month and make too
little, 'cause two things: no concept model + megatons of outdated
examples.
More than month. Any other system already would work. For example
freeswitch. But I believe than Kamailio - has higher potential. Make
less level of occurrence. Write good documentation. Existing is
catastrophically incomplete.
Main question "How it work?" had partially answer for modules and no
answer at all on whole system.
OK, thanks for the feedback! Very useful.
We will certainly look into this. There are trainings, but no books
and very few guides on the web. Please feel free to contribute,
after all it is Open Source and we depend on community
contributions in order to get documentation written.
Have a great weekend.
/O
4:47 p.m.
В Fri, 19 Apr 2013 14:46:00 +0200
"Olle E. Johansson" <oej(a)edvina.net> пишет:
We will certainly look into this. There are trainings,
but no books
and very few guides on the web. Please feel free to contribute,
after all it is Open Source and we depend on community
contributions in order to get documentation written.
My english very poor :) And still doesn't clear for how it work.
--
SY,
Victor
JID: coyote(a)bks.tv
JID: coyote(a)bryansktel.ru
I use FREE operation system: 3.8.4-calculate GNU/Linux
4:50 p.m.
В Fri, 19 Apr 2013 10:56:26 +0200
"Olle E. Johansson" <oej(a)edvina.net> пишет:
- $avp is stored in transactions (in shared memory),
so if you set
them while processing a request you have them when processing
responses and failures.
is memory freeing automatically or i need to do it myself?
--
SY,
Victor
JID: coyote(a)bks.tv
JID: coyote(a)bryansktel.ru
I use FREE operation system: 3.8.4-calculate GNU/Linux
4:52 p.m.
19 apr 2013 kl. 16:50 skrev "Victor V. Kustov" <coyote(a)bks.tv>tv>:
В Fri, 19 Apr 2013 10:56:26 +0200
"Olle E. Johansson" <oej(a)edvina.net> пишет:
When the transaction dies, the AVPs associated with it are released
and the bits are reused.
Kamailio is environmentally friendly,
with a green logotype :-)
/O
- $avp is stored in transactions (in shared
memory), so if you set
them while processing a request you have them when processing
responses and failures.
is memory freeing automatically or i need to do it myself? 
5 p.m.
Use $var when you want to manipulate values inside a route block, for
example, when you want to store a value that will live only in the scope of
that route block. When the route block exits, it will be automatically
deallocated.
Use $avp when you want to store a value that you want to read anywhere. It
will live as long as the SIP transaction lives.
- $var is stored in private memory, it is per process. This means that only
the process that created it can read it.
- $avp is stored in shared memory. It can be accessed from any process in
kamailio's process list (childs)
- $var has local route block scope.
- $avp has SIP transaction scope.
- Both $avp and $var are automatically freed.
On Fri, Apr 19, 2013 at 10:50 AM, Victor V. Kustov <coyote(a)bks.tv> wrote:
В Fri, 19 Apr 2013 10:56:26 +0200
"Olle E. Johansson" <oej(a)edvina.net> пишет:
--
Carlos
http://caruizdiaz.com
+595981146623
- $avp is stored in transactions (in shared
memory), so if you set
them while processing a request you have them when processing
responses and failures.
is memory freeing automatically or i need to do it myself?
--
SY,
Victor
JID: coyote(a)bks.tv
JID: coyote(a)bryansktel.ru
I use FREE operation system: 3.8.4-calculate GNU/Linux
_______________________________________________
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
5:27 p.m.
New subject: Evariste Systems to drop Kamailio market, become Acme Packet VAR
Sorry to hear this really negative news on open-source Kamailio. I want to share the
following two good articles with you. Both articles shed light on the positive impact of
building with SIP. The 1st good article "H.323 and SIP Becoming Legacy. XMPP and JS
are the Future"
April 12, 2012
The 12 comments for the article are also worth reading.
http://bloggeek.me/h323-sip-xmpp-js/ The 2nd good article "SIP vs XMPP or SIP and
XMPP?" compares the 2 most popular signaling protocols - SIP and XMPP.
November 09, 2009
http://p2p-sip.blogspot.ca/2009/11/sip-vs-xmpp-or-sip-and-xmpp.html Due to its popularity,
SIP faces with overload issue recently. Build-in overload mechanism cannot prevent
overload effectively. Therefore, IETF SIP Overload Control (soc) Working Group works on
IETF RFC "SIP Overload Control" currently.
http://tools.ietf.org/html/draft-ietf-soc-overload-control-12
IETF SIP Overload Control discussion archives
http://www.ietf.org/mail-archive/web/sip-overload/current/threads.html#00874
We have published a survey on SIP overload control algorithms (including IETF RFC
"SIP Overload Control").
"A Comparative Study of SIP Overload Control Algorithms"
http://www.researchgate.net/publication/231609451_A_Comparative_Study_of_SI…
http://arxiv.org/abs/1210.1505
http://www.igi-global.com/chapter/comparative-study-sip-overload-control/67…
We have also used control theorectic approaches to model the interactions between an
overloaded SIP server and its upstream servers as a feedback control system in two
different scenarios - redundant retransmission ratio control and round trip delay control
(IEEE Globecom 2010 and ICC 2011).
"Mitigating SIP Overload Using a Control-Theoretic Approach" IEEE Globecom 2010
http://www.researchgate.net/publication/221284946_Mitigating_SIP_Overload_U…
http://ieeexplore.ieee.org/xpl/login.jsp?tp=&arnumber=5683124&url=h…
Implementation of implicit SIP overload control in the real system
"An Efficient Earthquake Early Warning Message Delivery Algorithm Using an in Time
Control-Theoretic Approach"
http://link.springer.com/chapter/10.1007%2F978-3-642-23641-9_15#
http://www.ipv6.org.tw/docu/elearning8_2011/1010004798p_3-7.pdf "Design Of A PI Rate
Controller for Mitigating SIP Overload" IEEE ICC 2011
http://www.researchgate.net/publication/224249824_Design_of_a_PI_Rate_Contr…
http://features.rr.com/article/01vBgtc8TR17z?q=Skype
http://ieeexplore.ieee.org/xpl/login.jsp?tp=&arnumber=5963029&url=h…
Best regards,
Winston Hong
Software Engineer
InBay Technologies Inc.
Ottawa,
Canada K2K 1Y3
http://www.inbaytech.com/solutions.html > On Mar 31, 2013 6:33 PM, "Alex
Balashov" <abalas...(a)evaristesys.com> wrote:
For immediate release:
ATLANTA, GA (1 April 2013)--Evariste Systems LLC, an Atlanta-based
consultancy specialising in Kamailio-based VoIP infrastructure solutions
for the ITSP and CLEC market, has announced that beginning in the second
quarter of 2013, it will be abandoning its Kamailio-based technology
portfolio to focus on its new role as a preferred VAR (Value Added
Reseller) for Acme Packet (NASDAQ:APKT).
"It is with a heavy heart that we abandon five years of Kamailio-oriented
work and the Canonical SIP Routing Platform product derived from it,"
said Alex Balashov, the principal of the company.
29 Apr
29 Apr
2:29 p.m.
В Fri, 19 Apr 2013 14:46:00 +0200
"Olle E. Johansson" <oej(a)edvina.net> пишет:
We will certainly look into this. There are trainings,
but no books
and very few guides on the web. Please feel free to contribute,
after all it is Open Source and we depend on community
contributions in order to get documentation written.
OK, i think any function need examples. Not for call only, but for use
result.
radius_load_callee_avps(callee)
I see in doc:
radius_load_callee_avps("$rU@$rd"); # take callee from Request-URI
I call this function, but where are results? How can i check errors, where i must look
results? In which avps?
--
SY,
Victor
JID: coyote(a)bks.tv
JID: coyote(a)bryansktel.ru
I use FREE operation system: 3.8.4-calculate GNU/Linux
2:34 p.m.
Victor V. Kustov writes:
radius_load_callee_avps(callee)
I see in doc:
radius_load_callee_avps("$rU@$rd"); # take callee from Request-URI
I call this function, but where are results? How can i check errors,
where i must look results? In which avps?
as the name of the function indicates, the result is in the avps. if
the function call fails, result value will be -1 as usual and you get
error message to syslog.
-- juha
2:41 p.m.
29 apr 2013 kl. 14:29 skrev "Victor V. Kustov" <coyote(a)bks.tv>tv>:
В Fri, 19 Apr 2013 14:46:00 +0200
"Olle E. Johansson" <oej(a)edvina.net> пишет:
It is explained in section 1. Overview.
Now, I realize you missed that so there propably needs to be a pointer to that section in
the function descriptions.
/O
We will certainly look into this. There are
trainings, but no books
and very few guides on the web. Please feel free to contribute,
after all it is Open Source and we depend on community
contributions in order to get documentation written.
OK, i think any function need examples. Not for call only, but for use
result.
radius_load_callee_avps(callee)
I see in doc:
radius_load_callee_avps("$rU@$rd"); # take callee from Request-URI
I call this function, but where are results? How can i check errors, where i must look
results? In which avps?
2:44 p.m.
В Mon, 29 Apr 2013 15:34:11 +0300
Juha Heinanen <jh(a)tutpro.com> пишет:
as the name of the function indicates, the result is
in the avps. if
the function call fails, result value will be -1 as usual and you get
error message to syslog.
in which avps?
kk, radius answer:
Session-Timeout = '4284860'
next-hop-ip = 'SIP/111111111@cisco-out'
session-protocol = 'SIP'
how i can access to reply?
--
SY,
Victor
JID: coyote(a)bks.tv
JID: coyote(a)bryansktel.ru
I use FREE operation system: 3.8.4-calculate GNU/Linux
2:46 p.m.
29 apr 2013 kl. 14:44 skrev "Victor V. Kustov" <coyote(a)bks.tv>tv>:
В Mon, 29 Apr 2013 15:34:11 +0300
Juha Heinanen <jh(a)tutpro.com> пишет:
Documentation says:
All functions of this module load AVPs from SIP-AVP reply items received from RADIUS upon
a successful request. Value of the SIP-AVP reply item must be a string of form:
• value = SIP_AVP_NAME SIP_AVP_VALUE
• SIP_AVP_NAME = STRING_NAME | '#'ID_NUMBER
• SIP_AVP_VALUE = ':'STRING_VALUE | '#'NUMBER_VALUE
/O
as the name of the function indicates, the result
is in the avps. if
the function call fails, result value will be -1 as usual and you get
error message to syslog.
in which avps?
kk, radius answer:
Session-Timeout = '4284860'
next-hop-ip = 'SIP/111111111@cisco-out'
session-protocol = 'SIP'
how i can access to reply?
2:52 p.m.
В Mon, 29 Apr 2013 14:46:34 +0200
"Olle E. Johansson" <oej(a)edvina.net> пишет:
All functions of this module load AVPs from SIP-AVP
reply items
received from RADIUS upon a successful request. Value of the SIP-AVP
reply item must be a string of form:
• value = SIP_AVP_NAME SIP_AVP_VALUE
• SIP_AVP_NAME = STRING_NAME | '#'ID_NUMBER
• SIP_AVP_VALUE = ':'STRING_VALUE | '#'NUMBER_VALUE
sorry its not clear for me.
$avp('next-hop-ip') is ok in my case? Or i need _special_ radius answer?
--
SY,
Victor
JID: coyote(a)bks.tv
JID: coyote(a)bryansktel.ru
I use FREE operation system: 3.8.4-calculate GNU/Linux
30 Apr
30 Apr
11:38 a.m.
On 04/29/2013 03:52 PM, Victor V. Kustov wrote:
В Mon, 29 Apr 2013 14:46:34 +0200
"Olle E. Johansson" <oej(a)edvina.net> пишет:
Not so "special" .. You need to add SIP-AVP attributes to an
access-accept reply from radius. As I remember this attribute must be
declared somewhere in dictionary.openser.
All functions of this module load AVPs from
SIP-AVP reply items
received from RADIUS upon a successful request. Value of the SIP-AVP
reply item must be a string of form:
• value = SIP_AVP_NAME SIP_AVP_VALUE
• SIP_AVP_NAME = STRING_NAME | '#'ID_NUMBER
• SIP_AVP_VALUE = ':'STRING_VALUE | '#'NUMBER_VALUE
sorry its not clear for me.
$avp('next-hop-ip') is ok in my case? Or i need _special_ radius answer?
12:14 p.m.
В Tue, 30 Apr 2013 12:38:11 +0300
Vitaliy Aleksandrov <vitalik.voip(a)gmail.com> пишет:
Not so "special" .. You need to add SIP-AVP
attributes to an
access-accept reply from radius. As I remember this attribute must be
declared somewhere in dictionary.openser.
bad news for me. radius already work with other systems and all of them
receive standart response like described.
--
SY,
Victor
JID: coyote(a)bks.tv
JID: coyote(a)bryansktel.ru
I use FREE operation system: 3.8.4-calculate GNU/Linux
4041
days inactive
4052
days old
24 comments
7 participants
participants (7)
-
Alex Balashov -
Carlos Ruiz Díaz -
Juha Heinanen -
Olle E. Johansson -
Victor V. Kustov -
Vitaliy Aleksandrov -
Yang Hong