Please enable debug on pulse audio, retest, and give me back your syslog. But please also save the timestamp when the dialog shows up, to see if it was indeed pulse that got blocked or something like that.
To enable debug on pulse: $ sudo sed -i 's/--start/--start --log-level=debug/g' /usr/share/upstart/sessions/pulseaudio.conf ** Changed in: pulseaudio (Ubuntu) Status: New => Incomplete -- You received this bug notification because you are a member of DX Packages, which is subscribed to indicator-messages in Ubuntu. Matching subscriptions: dx-packages https://bugs.launchpad.net/bugs/1394105 Title: Sometimes significant lag between snap dialog and ringtone start Status in “indicator-messages” package in Ubuntu: Invalid Status in “ofono” package in Ubuntu: New Status in “pulseaudio” package in Ubuntu: Incomplete Status in “telepathy-ofono” package in Ubuntu: New Bug description: Version: ubuntu-touch/ubuntu-rtm/14.09-proposed r140 krillin When testing a large number of phone calls it could be seen that on certain calls there would be a significant delay between the snap decision dialog being displayed and the ringtone beginning to play. In extreme circumstances this could cause calls to be missed as there would not be enough time to answer. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/indicator-messages/+bug/1394105/+subscriptions -- Mailing list: https://launchpad.net/~dx-packages Post to : dx-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~dx-packages More help : https://help.launchpad.net/ListHelp