16 Mar
2010
16 Mar
'10
7:12 p.m.
2010/3/16 mustafa rifaee <mustafa.rifaee(a)gmail.com>om>:
Hi all,
I would like to asking you
Hi, it's just better to keep the thread in the maillist.
about the Time-stamp header in SIP messages, and
why this header does not supported in most open SIP servers, Is it
recommended or not?
Is this fact true ?? I think The problem is that both
UAS and UAC must have
the same system time to generate a useful result. So therefore both or all
SIP devices (think about an intermediate proxy) must have NTP activated.
That's not true. The request can contain a header like:
TimeStamp: 25
and the proxy/server replies in the 100 Trying:
TimeStamp: 25 0.001
This means that it has token 0.001 seconds to the server in order to
process the request and generate the 100 response.
--
Iñaki Baz Castillo
<ibc(a)aliax.net>
--
Iñaki Baz Castillo
<ibc(a)aliax.net>
16 Mar
16 Mar
7:48 p.m.
New subject: [Kamailio-Users] Is Timestamp supported in kamailio?
On 03/16/2010 01:12 PM, Iñaki Baz Castillo wrote:
That's not true. The request can contain a header
like:
TimeStamp: 25
and the proxy/server replies in the 100 Trying:
TimeStamp: 25 0.001
It seems to me that the a proxy processing an initial request directed
to it should be able to insert such a header in a reply, but that
Kamailio does not have support for timing functions that perform these
measurements automatically. Would you agree?
--
Alex Balashov - Principal
Evariste Systems LLC
Tel : +1 678-954-0670
Direct : +1 678-954-0671
Web : http://www.evaristesys.com/
7:54 p.m.
New subject: [Kamailio-Users] Is Timestamp supported in kamailio?
2010/3/16 Alex Balashov <abalashov(a)evaristesys.com>om>:
It seems to me that the a proxy processing an initial
request directed to it
should be able to insert such a header in a reply, but that Kamailio does
not have support for timing functions that perform these measurements
automatically. Would you agree?
Well, a workaround could be take the current time at the top of the
script, then just before the t_relay (the real time it takes to the
proxy to process the request) calculate the delta time and generate a
stateless 100 reply adding suche header. Then call to t_relay with the
proper flag to avoid sending a new 100 response.
--
Iñaki Baz Castillo
<ibc(a)aliax.net>
7:56 p.m.
New subject: [Kamailio-Users] Is Timestamp supported in kamailio?
On 03/16/2010 01:54 PM, Iñaki Baz Castillo wrote:
2010/3/16 Alex
Balashov<abalashov(a)evaristesys.com>om>:
Sure. What I meant is that apart from $Ts in K >= 3.0.x, there aren't
really any ways to compute the delay on that level of time resolution.
Are there?
--
Alex Balashov - Principal
Evariste Systems LLC
Tel : +1 678-954-0670
Direct : +1 678-954-0671
Web : http://www.evaristesys.com/
It seems to me that the a proxy processing an
initial request directed to it
should be able to insert such a header in a reply, but that Kamailio does
not have support for timing functions that perform these measurements
automatically. Would you agree?
Well, a workaround could be take the current time at the top of the
script, then just before the t_relay (the real time it takes to the
proxy to process the request) calculate the delta time and generate a
stateless 100 reply adding suche header. Then call to t_relay with the
proper flag to avoid sending a new 100 response.
8:03 p.m.
New subject: [Kamailio-Users] Is Timestamp supported in kamailio?
2010/3/16 Alex Balashov <abalashov(a)evaristesys.com>om>:
Sure. What I meant is that apart from $Ts in K >=
3.0.x, there aren't
really any ways to compute the delay on that level of time resolution. Are
there?
Yes, right. I did something similar long time ago and just got seconds
precision :)
--
Iñaki Baz Castillo
<ibc(a)aliax.net>
17 Mar
17 Mar
3:12 p.m.
New subject: [Kamailio-Users] Is Timestamp supported in kamailio?
Hello,
On 03/16/2010 07:03 PM, Iñaki Baz Castillo wrote:
2010/3/16 Alex
Balashov<abalashov(a)evaristesys.com>om>:
one of the old function in textops is append_time() which adds a date
header, with complete date and time, still up to second precision.
http://kamailio.org/docs/modules/3.0.x/modules_k/textops.html#id2494947
It is true that before 3.0.0 there was no script variable returning
better time precision than second, devel has it as timeval variable:
http://sip-router.org/wiki/cookbooks/pseudo-variables/devel#timeval
But there are options to do it in case you really need better precision,
using sql query, exec or perl. Not only those, because benchmark has a
nicer way to get the difference of time for config execution:
http://kamailio.org/docs/modules/stable/modules_k/benchmark.html#id2521780
Then adding a header to a local generated reply is easy.
Cheers,
Daniel
Sure. What I meant is that apart from $Ts in
K>= 3.0.x, there aren't
really any ways to compute the delay on that level of time resolution. Are
there?
Yes, right. I did something similar long time ago and just got seconds
precision :)
16 Mar
16 Mar
9:15 p.m.
New subject: [Kamailio-Users] Is Timestamp supported in kamailio?
You could also send the 100 trying response at the beginning of the
script. the the processing delay is almost 0 :-)
klaus
Am 16.03.2010 18:54, schrieb Iñaki Baz Castillo:
2010/3/16 Alex
Balashov<abalashov(a)evaristesys.com>om>:
It seems to me that the a proxy processing an
initial request directed to it
should be able to insert such a header in a reply, but that Kamailio does
not have support for timing functions that perform these measurements
automatically. Would you agree?
Well, a workaround could be take the current time at the top of the
script, then just before the t_relay (the real time it takes to the
proxy to process the request) calculate the delta time and generate a
stateless 100 reply adding suche header. Then call to t_relay with the
proper flag to avoid sending a new 100 response.
9:20 p.m.
New subject: [Kamailio-Users] Is Timestamp supported in kamailio?
True. :)
--
Sent from mobile device
On Mar 16, 2010, at 3:15 PM, Klaus Darilion <klaus.mailinglists(a)pernau.at
wrote:
You could also send the 100 trying response at the
beginning of the
script. the the processing delay is almost 0 :-)
klaus
Am 16.03.2010 18:54, schrieb Iñaki Baz Castillo:
> 2010/3/16 Alex Balashov<abalashov(a)evaristesys.com>om>:
>> It seems to me that the a proxy processing an initial request
>> directed to it
>> should be able to insert such a header in a reply, but that
>> Kamailio does
>> not have support for timing functions that perform these
>> measurements
>> automatically. Would you agree?
>
> Well, a workaround could be take the current time at the top of the
> script, then just before the t_relay (the real time it takes to the
> proxy to process the request) calculate the delta time and generate a
> stateless 100 reply adding suche header. Then call to t_relay with
> the
> proper flag to avoid sending a new 100 response.
>
>
9:44 p.m.
New subject: [Kamailio-Users] Is Timestamp supported in kamailio?
2010/3/16 Klaus Darilion <klaus.mailinglists(a)pernau.at>at>:
You could also send the 100 trying response at the
beginning of the script.
the the processing delay is almost 0 :-)
Yes, and you can also reply "200 OK" at the beginning of the script in
order no call to fail XDDDDDDDDD
--
Iñaki Baz Castillo
<ibc(a)aliax.net>
5364
days inactive
5365
days old
8 comments
4 participants
participants (4)
-
Alex Balashov -
Daniel-Constantin Mierla -
Iñaki Baz Castillo -
Klaus Darilion