[SR-Users] How to reduce re-INVITE time in Kamailio

Yuriy Gorlichenko ovoshlook at gmail.com
Tue Dec 17 19:47:24 CET 2019

Session-Expires header ( Just remembered right name) will help you
See rfc 4028

On Tue, 17 Dec 2019, 19:44 Yuriy Gorlichenko, <ovoshlook at gmail.com> wrote:

> Hi. It is no a kamailio question but sip question itself. You can manage
> how often te invite will be by using session-timers. It will help you to
> setup time range between reInvite ir whatever message you will use as
> keepalive
> On Tue, 17 Dec 2019, 19:34 Anuran Barman, <anuranbarman at gmail.com> wrote:
>> Hi, I am using Kamailio for my SIP Phone app. My main SIP client is the
>> iOS app. Till now everything is working fine regarding the calling. But the
>> problem is when the app is killed I am not able to pick up incoming call.
>> The thing is, when app is killed I am sending PushKit VOIP message to my
>> ios app to wake it up. App is waking up. But by the time app is waking up,
>> the original INVITE message got missed up. So according to SIP protocol it
>> will re-INVITE after some time. Currently if I keep my app open for 10-15
>> secs after it wakes up, I am able to get the re-INVITE and everything works
>> fine just as it was supposed to. But waiting 10-15 sec on the app is not
>> practical in any sense.
>> So my question is there any way I can reduce the re-INVITE time to like
>> 5/6 seconds so that as soon as the app open it will wait for 5/6 seconds
>> (practical upto some extent) and it will get the call ? Or what kamailio is
>> using as the interval time is a SIP standard and can not be changed? If
>> possible to do so, how can I do that? Please help.
>> _______________________________________________
>> Kamailio (SER) - Users Mailing List
>> sr-users at lists.kamailio.org
>> https://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-users
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