Thanks! It seems VoiceBusy = XXXXXXXXXXXXXX is set correctly by System Settings, so this may likely be an issue in ofono or with your carrier.
Are you able to do some more debugging, the output from the following steps [1] would be interesting. Make sure you remove all sensitive numbers (SubscriberIdentity, CardIdentifier, etc). [1] http://pastebin.ubuntu.com/13214951/ -- You received this bug notification because you are a member of Ubuntu Phonedations bugs, which is subscribed to ofono in Ubuntu. https://bugs.launchpad.net/bugs/1505463 Title: Forward incoming calls when I'm on another call, feature is not achieved Status in ofono package in Ubuntu: New Status in ubuntu-system-settings package in Ubuntu: Invalid Bug description: system-image-cli -i current build number: 147 device name: krillin channel: ubuntu-touch/rc-proposed/bq-aquaris.en last update: 2015-10-12 11:06:46 version version: 147 version ubuntu: 20151009 version device: 20150821-736d127 version custom: 20150925-901-35-40-vivid Reproduce steps : step 1:Open System Settings > Phone > 'Call forwarding' step 2: Uncheck 'Forward every incoming call'. step 3: Click on "I'm on another call". step 4: Enter a transferring telephone number and click on set. step 5: Use one phone call up DUT and answer.Then use another phone call up DUT. Actual result: Call forwarding options (single SIM) .Forward incoming calls when I'm on another call feature is not achieved,Set the transfer number don't receive incoming call. Expected result: Forward incoming calls when I'm on another call ,Set the transfer number receive incoming call. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/ofono/+bug/1505463/+subscriptions -- Mailing list: https://launchpad.net/~ubuntu-phonedations-bugs Post to : ubuntu-phonedations-bugs@lists.launchpad.net Unsubscribe : https://launchpad.net/~ubuntu-phonedations-bugs More help : https://help.launchpad.net/ListHelp