[SR-Users] TM Module t_suspend question

[Mele Giovanni]

Hello Federico,

Thx for you input. We are effectively using TS_SILO module to store the transactions. The link to your presentation is very interesting! Grazie!

In your presentation, the multi-device scenario assumes all devices are able to receive push notifs, but what happens if you have one device that doesn’t support it, like a Windows based desktop VoIP client?


Regards


Giovanni


From: sr-users [mailto:sr-users-bounces at lists.sip-router.org] On Behalf Of Federico Cabiddu
Sent: vendredi 10 juin 2016 10:48
To: Kamailio (SER) - Users Mailing List
Subject: Re: [SR-Users] TM Module t_suspend question

Hi,
for this kind of scenarios I'd suggest to use the TSILO module which have been thought for mobile multidevice scenarios:
http://www.kamailio.org/docs/modules/devel/modules/tsilo.html.

Basically what you can do is: send the INVITE to the desktop phone, store the transaction, send the push to wake up the mobile app, append a branch to the stored transaction as soon as the mobile app registers.

In my last year's presentation at Kamailio World I give an example of TSILO usage:

http://www.kamailio.org/events/2015-KamailioWorld/Day2/20-Federico.Cabiddu-Kamailio-In-A-Mobile-World.pdf

Regards,

Federico

On Fri, Jun 10, 2016 at 10:41 AM, gmele <giovanni.mele at nagra.com<mailto:giovanni.mele at nagra.com>> wrote:
Hello,

we are using the TM Module* t_suspend *function in our kamailio to suspend
transactions (mainly INVITE requests). We do this as we send some push
notification to the callee that will force it to re-REGISTER. Once we get
the REGISTER, we resume the transaction with a *t_continue()*.

If the callee never re-REGISTER, the FR Timer will terminate the INVITE
transaction.

This is working fine for us when the callee has a phone that can receive the
push notification.


Now, we want to be able to contact users having multiple devices: phone and
desktop VoIP clients. The problem with current implementation is that if we
wait for the re-REGISTER from the mobile phone, we may never send the INVITE
to the desktop VoIP client if the mobile phone is shutdown.

So, I'd like to now if it is possible to set a timer to the t_suspend
command which will automatically resume the suspended transaction (without
issuing  an ERROR like the FR timer is doing)? I didn't see such possibility
in the TM module, but is there another way to implement this?

Hope I was clear enough


Regards


Giovanni




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