I can reproduce this with a single SIM. The "Call Back" button is disabled and so is the "Send" button and "Message" button.
** Changed in: telephony-service (Ubuntu) Status: Incomplete => Confirmed ** Changed in: telephony-service (Ubuntu) Assignee: (unassigned) => Tiago Salem Herrmann (tiagosh) ** Tags added: ww11 ** Also affects: telephony-service Importance: Undecided Status: New -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to telephony-service in Ubuntu. https://bugs.launchpad.net/bugs/1425078 Title: Cannot callback/send messages from Notifications Status in Telephony Service: New Status in telephony-service package in Ubuntu: Confirmed Bug description: 1. Create an incoming call to your Ubuntu phone from another device 2. Don't pickup the call so that missed call notification appears in the 'Notifications' menu 3. Open Notifications and tap on the missed call entry for it to expand 4. press the 'Call back' button What happens: Nothing What should happen: Dialer app should open with the relevant number already in the input box. ProblemType: Bug DistroRelease: Ubuntu 15.04 Package: indicator-messages 13.10.1+15.04.20150219-0ubuntu1 Uname: Linux 3.4.67 armv7l ApportVersion: 2.16.1-0ubuntu2 Architecture: armhf Date: Tue Feb 24 18:36:59 2015 InstallationDate: Installed on 2015-02-24 (0 days ago) InstallationMedia: Ubuntu Vivid Vervet (development branch) - armhf (20150224-020204) SourcePackage: indicator-messages UpgradeStatus: No upgrade log present (probably fresh install) To manage notifications about this bug go to: https://bugs.launchpad.net/telephony-service/+bug/1425078/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp