[SR-Users] Tsilo iOS Push Notifications with Kamailio/Asterisk Integration

[Federico Cabiddu]

Hi Benjamin,
if you don't plan to support multiple devices per account just the
t_suspend/t_continue pair should be enough to support push notification.
This being said you can easily integrate the example in my presentation in
the Kamailio's configuration given in the Asterisk/Kamailio integration
page.
For the INVITE you have to modify the route[LOCATION] and, instead of
performing the lookup, suspend the transaction and send the push. In this
way you'll also send the push for every INVITE, regardless of the
registration state. You have then to modify the REGISTRAR route after
calling save() to resume the transaction or to append new branches (if you
use tsilo). I think that the snippets from my example should be enough.
Hope this helps.

Regards,

Federico

On Wed, Dec 7, 2016 at 2:32 AM, Benjamin Fitzgerald <ben at letscorp.us> wrote:

> Hello, my goal is to address iOS 10's removal of periodic TCP connections
> in iOS apps with their replacement PushKit, a push-based alternative all
> VoIP apps should implement.
>
> In order to have iOS apps receive SIP calls in the background, I believe I
> need to use tsilo to suspend the INVITE transaction send a push
> notification to the device. I have been following the presentation here (
> http://www.kamailio.org/events/2015-KamailioWorld/
> Day2/20-Federico.Cabiddu-Kamailio-In-A-Mobile-World.pdf) however I am not
> sure how to integrate it with Asterisk (http://kb.asipto.com/
> asterisk:realtime:kamailio-4.0.x-asterisk-11.3.0-astdb).
>
> My questions can be summarized below:
>
> (1) What changes need to be made from Federico's presentation to use with
> the Kamailio/Asterisk integration?
>
> (2) How can I modify the config to send push notifications for EVERY
> invite? This is to address the scenario where a device goes offline before
> the SIP registration expires and a call is received within that window. iOS
> is very aggressive about killing background applications so it's likely as
> soon as user leaves the VoIP app, the device will become unreachable.
>
> Thanks for any help.
>
> Benjamin Fitzgerald
> LETS Corporation
> (925) 235-1154
> ben at letscorp.us
>
>
>
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