I can't use Telegram because of the (known) password/two-factor authentication issue, but I did try to replicate @cm-t 's problem with a text message, and was unable to do so...
With my screen off and music playing, the music softened/lowered in volume ("ducked"), my notification tone was heard at full volume, then the music resumed playing as per normal. -- bq Aquaris E5 HD Ubuntu Edition * OS: Ubuntu 15.04 (OTA-10.1) * OS build number: OTA-10.1 * Ubuntu Image part: 20160408.4 * Ubuntu build description: Ubuntu 15.04 - armf (20160408-211605) * Device Image part: 20160329-a9bacdb * Device build description: VEGETA01A-S23A_BQ_L100EN_2012_160408 * Customisation Image [art: 20160324--36-54-vivid -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1534776 Title: Notification sounds cause multimedia to pause To manage notifications about this bug go to: https://bugs.launchpad.net/canonical-devices-system-image/+bug/1534776/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs