After rebooting the phone (for other reasons) now some days later the phone does work fine. I can not reproduce that error any more. I do attach the log for today. Because the problem did occur I do not close that bug. But solving the problem is not urgent any more - as far as I am concerned.
** Attachment added: "telephony-service-indicator.log" https://bugs.launchpad.net/ubuntu/+source/indicator-sound/+bug/1555221/+attachment/4597825/+files/telephony-service-indicator.log -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1555221 Title: [phone] no sound on incoming text messages To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/indicator-sound/+bug/1555221/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs