Re: [Linphone-users] Linphone on iOS does not ring anymore reliably - push notification not working

[Martin Glaser]

Hello Germán, dear Linphone developers and all,

I was able to solve my problem.

I uninstalled Linphone, re-installed it freshly from the App Store, configured 
my linphone.org account and ringing was working again.

Changing step by step the configuration to the settings from before the re-install, I found that when I change the 
options "Show message in notification", "Auto-answer after notification", "Animations" 
and "Start at boot" to off in the Advanced page, the iPhone does again not ring anymore. Reverting the 
options back to on, does not bring back the ringing. So I decided to re-install again and keep the settings unchanged.

I guess there is a bug, that does not correctly write back changes to these options to 
some storage that is then used by the software. "Enable smart address book" 
also is buggy, it always flips back to on how often ever I switch it to off.

I am not sure what the two notification related options do exactly. I thought so far that 
"Show message in notification" would result in not giving the notification any content 
for the message leaving Apple and the notification system and all possible persons that can see the 
content on the lock screen in the dark about the reason for the notification. "Auto-answer 
after notification" I understood so that Linphone would when activated immediately and 
automatically take the incoming call. Apparently not.

So I think with that information the issue can be easily fixed.

Best Regards

 Martin


On 26.09.21 20:25, German Cancio wrote:
> Martin,
>
> Well, reading more carefully through your mail I see that you are indeed using 
> a Linphone.org account and that the app does indeed wake up within the 
> timeframe of what a push notification would take to arrive (the 3 lines you 
> quote at 13:14:25). I’m afraid I don’t understand why the app then goes back to 
> sleep. But it really points to the app successfully receiving, but then holding 
> back the Push Notification.
>
> In my own logs, I can’t find anything like what you got:
>
> > > 2021-09-26 13:14:25:381 [linphone/ios] ERROR (UICompositeView.m:256 ) 
> > > Exception: Linphone core not initialized yet, ignoring
>
> Maybe one of the Linphone developers may have an idea on whether this is 
> pointing to the root cause.
>
> Cheers Germán


On 27.09.21 12:26, Martin Glaser wrote:
> Hello Germán and all,
>
> please find attached screenshots of Linphone's configuration on my iPhone.
>
> I have not tried with another iOS device or another ID (I have none).
>
> Yes, I use a linphone.org account.
>
> Best Regards
>
>   Martin
>
>
> On 26.09.21 20:08, German Cancio wrote:
> > Martin,
> >
> > Yes, it really looks as if the push notification has problems to be received by 
> > the device and/or propagated to the app. But I’m not sure that’s the client 
> > app’s fault. I have no issues receiving push notifications using my 
> > Linphone.org account on iOS (running Linphone 4.5.0). Have you tried with 
> > another iOS device and/or another user ID? To what SIP server are you 
> > connecting, are you using a linphone.org account? (Neither the call-ID format 
> > nor the from-URI look like the usual Linphone.org ones, but I might be wrong).
> >
> > Cheers, Germán
> >
> >
> > > On 26 Sep 2021, at 14:10, Martin Glaser <feed1332@wolke7.net> wrote:
> > >
> > > Hello Germán,
> > >
> > > right, so I did following test:
> > >
> > > 13:04 started logging, changed to iPhone launcher, let iPhone switch display 
> > > off (standby)
> > > 13:14 called from my other mobile phone - iPhone did not ring - ended the call 
> > > after about 15 seconds
> > > 13:16 activated iPhone (display, launcher)
> > > 13:17 switched to Linphone - I see the start screen - then I see Calling screen 
> > > - then I select Dismiss - then I go to Settings/Advanced and Send Log
> > >
> > > Attached is the full log file, I replaced references to my telephone number and my 
> > > Linphone account by >...<.
> > >
> > > Essential seems to be
> > >
> > > 2021-09-26 13:14:25:290 [linphone/ios] MESSAGE (honeAppDelegate.m:171 ) 
> > > Connecting for UNNotifications
> > > 2021-09-26 13:14:25:357 [linphone/ios] MESSAGE (UICompositeView.m:135 ) 
> > > landscape get opposite: {568, 320}
> > > 2021-09-26 13:14:25:381 [linphone/ios] ERROR (UICompositeView.m:256 ) 
> > > Exception: Linphone core not initialized yet, ignoring
> > >
> > > Notification is then received late here:
> > >
> > > 2021-09-26 13:17:12:525 [linphone/liblinphone] MESSAGE [PushKit] Notification 
> > > [0x2814e9580] received with payload : {
> > >     aps =     {
> > >         "call-id" = "4e050a6c1953f83b2b5c63f169f4b4be@188.246.0.83:5060";
> > >         "loc-args" =         (
> > >             ">...<"
> > >         );
> > >         "loc-key" = "IC_MSG";
> > >         "send-time" = "2021-09-26 11:14:24";
> > >         sound = "";
> > >         uuid = "<urn:uuid:2fe7ca81-5ab1-004a-9309-270b77e58bc6>";
> > >     };
> > >     customPayload =     {
> > >     };
> > >     "display-name" = ">...<";
> > >     "from-uri" = "sip:>...<@188.246.0.83";
> > >     "pn_ttl" = 50;
> > > }
> > >
> > > And there is no INVITE message.
> > >
> > > My iPhone is on mobile network only. Wi-Fi is off. Airplane Mode is off. Mobile 
> > > Data is on, Options set to Data Roaming off, Voice&Data LTE, VoLTE on, Low Data 
> > > Mode is off.
> > >
> > > Best Regards
> > >
> > > Martin
> > >
> > >
> > > On 19.09.21 19:05, German Cancio wrote:
> > > > Martin,
> > > >
> > > > I’d suggest you enable debug logs on the app and then check the log file for 
> > > > entries such as the following:
> > > >
> > > > *2021-09-16 08:28:48:232* [Linphone/iOS] MESSAGE (honeAppDelegate.m:560 ) 
> > > > [PushKit] Notification [0x280734480] received with payload : {
> > > >      aps =     {
> > > >          "call-id" = "*be5d70c3-396a-47cb-a10e-1aea69860afd*";
> > > > (…)
> > > >         "loc-key" = "IC_MSG";
> > > >          uuid = "<urn:uuid: bbb157d2-f5c0-005b-8302-442a615003ed>";
> > > >      };
> > > > }
> > > >
> > > > And also
> > > >
> > > > *2021-09-16 08:28:48:633* [Linphone/belle-sip] MESSAGE channel [0x103e00000]: 
> > > > received [2253] new bytes from [TLS://sip.linphone.org:5061]: 
> > > > <TLS://sip.linphone.org:5061]:>
> > > > INVITE sip:foobar@194.12.139.75:49929;transport=tls 
> > > > <sip:foobar@194.12.139.75:49929;transport=tls> SIP/2.0
> > > > (…)
> > > > Call-ID: *be5d70c3-396a-47cb-a10e-1aea69860afd*
> > > >
> > > > The first log entry gives you the timestamp of when the push notification was 
> > > > received, the second one the timestamp of the SIP INVITE for the same call-ID.
> > > >
> > > > Do you have this problem when on multiple mobile and Wifi networks? On some 
> > > > Wifi networks, iOS devices may be put to sleep which can cause push 
> > > > notifications to arrive (too) late.
> > > >
> > > > Cheers Germán
> > > >
> > > >
> > > >
> > > > > On 19 Sep 2021, at 14:16, Martin Glaser <feed1332@wolke7.net 
> > > > > <mailto:feed1332@wolke7.net>> wrote:
> > > > >
> > > > > Hi,
> > > > > since a couple of weeks the Linphone App installed on my iPhone does not ring 
> > > > > anymore when I receive a call as soon as the App is in the background or the 
> > > > > phone is in standby.
> > > > >
> > > > > Push Notification is activated and I use Linphone's VoIP server.
> > > > >
> > > > > I have Linphone in use since 2017 and it was all the time ringing very 
> > > > > realiably.
> > > > >
> > > > > Before the issue started, I updated Linphone from version 4.4.1 to version 
> > > > > 4.5.0.
...
> > > > > Does 4.5.0 have a bug that prevents the reliable ringing? Are there known 
> > > > > problems with Apple's Notification system?
...