People love IVR!
Just a quick reminder, and this is backed up by a report from the folks at Forrester research.  People really like IVR systems for simple tasks, and they overwhelmingly support IVR systems notifying them when important things are coming up, like the bill coming due, and stuff like that!

An Overwhelming Majority Of Consumers Express Interest In Proactive Notification

IVR preference graph

Base: 1,001 online US consumers who have used telephone customer service in the past 12 months
Source: “Driving Consumer Engagement With Automated Telephone Customer Service.”

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