[system-settings] should allow switching 2nd SIM to 3G data

[Olga Kemmet]

Build r95 krillin

Steps to reproduce
1. go to System Settings > Cellular
2. under CELLULAR DATA there are three options: OFF, SIM1 and SIM2
3. tap on SIM1, you will have the option to select between 2G ONLY (saves battery) and 2G/3G (faster)

Actual behaviour: tap on SIM2 and the only option available is 2G ONLY (saves battery)

Expected behaviour: SIM2 should have exactly the same options available as for SIM1, meaning that the 2G/3G option is missing. However, 3G connection can not be enabled for both SIMs at the same time. So if SIM1 is set to 2G/3G, SIM2 will be automatically set to 2G ONLY. If SIM2 is set to 2G/3G, SIM1 is set automatically to 2G only.
This switch would not require a reboot of the whole device and can be done while the phone is switched on. The switch can take 10-15 sec (at least on Android) and we will probably have to show some sort of spinner, to signal to the user that switching is in progress.

This depends on ofono changes, bug 1373388.

<https://wiki.ubuntu.com/Networking#cellular-connection>: "As with any radio list, if changing the connection type is taking more than one second, the radio mark for the new value should be replaced by a spinner until the change is complete, whereupon it should revert to a radio mark. If choosing a different connection type for one SIM (for example, from 2G to 2G/3G) forces a change in the connection type of the other SIM (for example, from 2G/3G to 2G), that change should be shown immediately."

[Jonas G. Drange (jonas-drange)]

This limitation is intrinsic in the current available hardware and not something we can change in Ubuntu System Settings.

[Olga Kemmet (olga-kemmet)]

Marking back to new.

[Brendan Donegan (brendan-donegan)]

This bug has further details: https://bugs.launchpad.net/barajas/+bug/1375204

[Ondrej Kubik (ondrak)]

Jonas: HW we are using is capable of switching active technology used on each SIM slot. There is hw limitation that only one SIM slot can have 3G technology enabled at the time, since phone has only one rf module.

Radio Interface Daemon can alter technologies used on each SIM slot, this operation require modem to reboot in the background, but it is totally possible to do it. We have also successfully tested this with Android build.

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.

[Ricardo Salveti (rsalveti)]

For RTM this still depends on bug 1373388 being fixed.

[Pat McGowan (pat-mcgowan)]

need design feedback

[Matthew Paul Thomas (mpt)]

Specification updated. <https://wiki.ubuntu.com/Networking?action=diff&rev2=250&rev1=249>

[Antti Kaijanmäki (kaijanmaki)]

blocked by https://bugs.launchpad.net/ubuntu/+source/indicator-network/+bug/1411714

[Pat McGowan (pat-mcgowan)]

land post rtm

[Victor Tuson Palau (vtuson)]

critical for ota-1 , large impact on dual sim phones

[Bill Filler (bfiller)]

blocked by these two bugs:
https://bugs.launchpad.net/ubuntu/+source/indicator-network/+bug/1411714
https://bugs.launchpad.net/barajas/+bug/1378778

[Launchpad Janitor (janitor)]

This bug was fixed in the package ubuntu-system-settings - 0.3+15.04.20150217-0ubuntu1

---------------
ubuntu-system-settings (0.3+15.04.20150217-0ubuntu1) vivid; urgency=medium

  [ jonas-drange ]
  * [cellular] allow user to change 3g modem (LP: #1379850)
  * [cellular] makes the apn editor somewhat compatible to libqofono 0.7
    (LP: #1379850, #1415215)

  [ CI Train Bot ]
  * New rebuild forced.
 -- CI Train Bot <email address hidden> Tue, 17 Feb 2015 15:33:07 +0000

[Launchpad Janitor (janitor)]

This bug was fixed in the package ubuntu-system-settings - 0.3+15.04.20150217~rtm-0ubuntu1

---------------
ubuntu-system-settings (0.3+15.04.20150217~rtm-0ubuntu1) 14.09; urgency=medium

  [ CI Train Bot ]
  * Resync trunk
  * Resync trunk
  * Resync trunk
  * Resync trunk
  * Resync trunk
  * Resync trunk
  * Resync trunk
  * Resync trunk
  * Resync trunk

  [ jonas-drange ]
  * [cellular] using libqofono-0.7 and including functionality for
    enabling users to change what modem has 3G (LP: #1379850)
  * [cellular] makes the apn editor somewhat compatible to libqofono 0.7
    (LP: #1379850)
 -- CI Train Bot <email address hidden> Tue, 17 Feb 2015 12:55:31 +0000

[Matthew Paul Thomas (mpt)]

(This should not be assigned to me for testing, because I don't have a dual-SIM phone.)

[Matthew Paul Thomas (mpt)]

Verified fixed.