UI for new step to enqueue calls in Verboice

[waj]

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• Imported from BitBucket: https://bitbucket.org/instedd/mbuilder/issue/201
• Originally Reported By: Nicolas di Tada
• Originally Created At: 2014-10-29 21:44:11+00:00

[bcardiff]

This is no longer need since the verboice integration goes via hub