answered
2017-11-02 19:25:14 +0300
Edit: Since this issue seems to be a little different, I've moved it to a new bug report:
https://together.jolla.com/question/173276/bug-unable-to-receive-sms-phone-calls-xperia-x-dual-sim-intex-aqua-fish/
This (or perhaps something very similar to it*) is still happening to me on 2.1.2.3 with an Intex Aqua Fish - after some amount of time I stop being able to receive calls or SMSs, but the phone still appears to be connected - the only way I find out is when someone complains that they couldn't get through to me, or I try to call myself or log into a service using my phone for 2FA and don't get the SMS.
My first SIM card for calls and SMS is on TPG in Australia, which is a reseller of the Vodaphone network. My second SIM card is also on the Vodaphone network (directly, not a reseller like TPG) for data. Both of these are connected to the "Vodaphone AU" network (I can also sometimes see "Vofaphone AU R", but I get "problem with connection" if I try to use it).
Notably, this issue only started for me when I moved from Sydney to Melbourne, which suggests to me that this is more than just carrier specific, perhaps depending on the specific network gear in use in the local towers. I can see two cellphone towers in the park right next to my place - I don't know if either of those are used by Vodaphone, but my signal strength is pretty much always shown as maximum, at least on SIM 1.
Nothing I've tried will work around it - tried all combinations of prefer 2G/3G/4G, disabling data, manual/automatic network selection, etc. Switching flight mode on and off or rebooting are the only workarounds, but that is not acceptable. I did try to gather some logs, but the problem refused to occur while I was doing that. ~~I am going to try with SIM2 completely disabled over the next week or so to see if that does anything.~~ Edit: Xperia X arrived sooner than expected, so probably not going to do this test.
- One notable difference I can identify from the OP is that when people try to call me they get a message that my phone is switched off or unavailable, rather than ringing out. I have gone out of my way to disable all redirect, voicemail, etc services from my carrier.
Update 2017-11-05: My Xperia X (dual SIM model) arrived sooner than expected, and after two days of use a similar, but different issue is showing up on it where it loses connection to the network, but it actually shows that on the display: https://together.jolla.com/question/170394/xperia-x-loss-of-mobile-network/
Update 2017-11-10: This same issue just occurred on my Dual SIM Xperia X running 2.1.3.7 as well, where the phone indicated it was still connected but a TFA SMS did not arrive and when I tried to call it from my landline I was told it was unavailable. The phone indicated it was connected to 4G at the time, and was connected to WiFi, so was not using a mobile data connection. I had rebooted the phone only a few hours earlier, which makes this instance the fastest occurrence of this issue that I'm aware of. Since this is a dual SIM Xperia, I am going to try disabling the second SIM over the next few weeks to see if it reoccurs.
Moved to a new bug report
Country, carrier, technology (3G, 4G?)
ossi1967 ( 2016-09-17 08:09:34 +0300 )editI have the exact same issue with my Jolla C, though I have observed it only with calls and not messages. I have at least three confirmed cases where the other party tried to call me and it looked like it was ringing on its side, but nothing showed up on my phone. Not even a missed call notification, it's like the call never happened. I was reluctant to report it until now because I wanted to eliminate the chance of an app or a patch etc. interfering... I have removed scumstopper app and removed all network change settings from Situations app to see if it would help, but the problem with this bug is you cannot reliably reproduce it or be sure it has gone away. Please Jolla, pay attention to this issue because it certainly is a showstopper....
thisisme ( 2016-09-17 15:14:56 +0300 )editI have the same on Aqua Fish, both on 2.0.2.48 and 51 versions
x1f ( 2016-09-19 13:48:54 +0300 )editIt did happen for me with 2.0.5.6 on a Jolla C. I only noticed, when my Mom called me on the landline at home, asking me if I was okee and why I would neither answer to calls or SMS text messages.
The Jolla C had an uptime of ~10 days by then and I think I at least disabled SIM card 2 in that period.
I'm using Swisscom (4G enabled) in SIM1 and SIM2 is 3AT card, but only enabled when I go to Austria.
Venty ( 2016-12-12 15:01:15 +0300 )editI can't understand how this is not treated as a release showstopper by Jolla...
thisisme ( 2016-12-12 19:01:27 +0300 )edit