Hi Artem,
I see - so at each re-registration cycle you loose 1 secs, dropping from
the 120 provisioned all the way the minimum of 29...., right ?
Regards,
Bogdan-Andrei Iancu
OpenSIPS Founder and Developer
https://www.opensips-solutions.com
OpenSIPS Summit 27-30 Sept 2022, Athens
https://www.opensips.org/events/Summit-2022Athens/
On 10/11/22 11:23 AM, Artem Fomenko wrote:
Hello Bogdan-Andrei,
I have a conversation with VoIP provider, he decrease "expires" time
by 1 sec on each registration from 120 sec (our expiry value) to 29
sec (according 30 sec - minimal provider's value). So registration
become to process too often. It is not make any problems for now. The
provider motivates its behavior by the following:
"
In fact, this is the time left to the end of the registration,
which is indicated in the "expires" parameter sent in our 200 OK.
"The time left to the end of the registration" was my
interpretation, but I think it's a reasonable one. When your side
requests "expires=120", our side honors this request, but due to
the actual record in the location registrar occurring milliseconds
later, the required "expires" time becomes 119.
Imagine that a bigger delay happens between receiving INVITE and
the actual recording to the location registrar, let's say about 2
seconds. In this case, if 200 OK was generated with "expires=120"
and sent 2 seconds later after receiving the first INVITE, your
side would think that the registration ends 2 seconds later than
actually it was requested.
"
this is not a violation of RFC3261 Section 10.3 step 8:
"
The registrar returns a 200 (OK) response. The response MUST contain Contact header
field values enumerating all current bindings. Each Contact value MUST feature an
"expires" parameter indicating its expiration interval chosen by the registrar.
"
But in my opinion, the interpretation of the provider is not entirely
correct. Despite this, I would like to know your opinion on this issue.
Regards,
LiveAgent
*Artem Fomenko*
*Development Team*
+421 2 33 456 826 (EU & Worldwide)
+1-888-257-8754 (USA & Canada)
www.liveagent.com
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-----Original message-----
From: Bogdan-Andrei Iancu <bog...@opensips.org>
Sent: 2022-10-10 16:50:42
Hi Artem,
This is the intended behavior of the module, re-register with the
last "expires" provided by the server - if the server had a good
reason to lower the registration time on first register, it will
most probably do it for the re-register's also. So does not make
too much of a sense to keep using the initial DB value - or do you
have some good reason not to update ?
Regards,
Bogdan-Andrei Iancu
OpenSIPS Founder and Developer
https://www.opensips-solutions.com
OpenSIPS Summit 27-30 Sept 2022, Athens
https://www.opensips.org/events/Summit-2022Athens/
On 9/23/22 7:15 PM, Artem Fomenko via Users wrote:
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