Comment 0 for bug 1383368

Reading the spec[1] for cellular settings on the phone, it seems that 7 needs some further specification for multi SIM phones.

Imagine a user that wants to change the radio technology preference on SIM #1 to 3G and set the same setting on SIM #2 to 2G.

Until the split [2] we have been changing the radio technology preference of the currently online SIM, but 7 of [1] makes this impossible.

Imagine the spec being implemented:

1. Unlock two SIM cards
2. Open Ubuntu System Settings, go to 'Cellular'
3. Turn off cellular data
4. Set radio technology preference on SIM #1 to be 3G and SIM #2 to be 2G

What happened:
There's no way to change both SIM cards using only one selector.

What should have happened:
I should have been able to change both SIM card's radio technology preference independently.

If this is to be solved by adding yet another selector to the 'Cellular' Ubuntu System Settings panel, we should ask ourselves:
* Is this panel, for multi SIM phones, growing too large?
* Would stacking the SIM cards and their preferences horizontally save space and be more intuitive? E.g. [3]

[1] https://wiki.ubuntu.com/Networking#phone-cellular
[2] https://bugs.launchpad.net/ubuntu/+source/ubuntu-system-settings/+bug/1378812
[3] http://i.imgur.com/7mmKraN.jpg