Knowing that this bug is in progress, I want to share an interesting finding (at least for me).
I am on rc-proposed (with bluez5, see details below). When SIM 1 is (randomly picked) used, the battery status is shown in the car display. When SIM 2 is used, the battery status shows 100% loading. system-image-cli -i: current build number: 196 device name: krillin channel: ubuntu-touch/rc-proposed/bq-aquaris.en last update: 2015-12-05 18:28:01 version version: 196 version ubuntu: 20151204.1 version device: 20151028-869191d version custom: 20151111–36-46-vivid -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to bluez in Ubuntu. https://bugs.launchpad.net/bugs/1418040 Title: Calling from car using bluetooth, call is placed on ril_0, even though ril_1 is default Status in Canonical System Image: Confirmed Status in bluez package in Ubuntu: Invalid Status in ofono package in Ubuntu: Triaged Status in telephony-service package in Ubuntu: Triaged Status in ubuntu-system-settings package in Ubuntu: Confirmed Status in telephony-service package in Ubuntu RTM: Triaged Bug description: What happened Placed call from car over bluetooth Call was placed on my first SIM card, even though I selected my second SIM as default for calls What should have happened The call should have been placed on my second SIM ProblemType: Bug DistroRelease: Ubuntu 15.04 Package: telephony-service 0.1+15.04.20150124-0ubuntu1 Uname: Linux 3.4.67 armv7l ApportVersion: 2.15.1-0ubuntu4 Architecture: armhf Date: Wed Feb 4 14:25:44 2015 InstallationDate: Installed on 2015-02-02 (2 days ago) InstallationMedia: Ubuntu Vivid Vervet (development branch) - armhf (20150202-020204) SourcePackage: telephony-service UpgradeStatus: No upgrade log present (probably fresh install) To manage notifications about this bug go to: https://bugs.launchpad.net/canonical-devices-system-image/+bug/1418040/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp