I saw this via Maia's blog. It's an iphone app called Dash4Teachers. Maia writes:
Reaching out to families proactively is the #1 area our workshop attendees say they wish they had more time for.
Ease – Dash makes a playlist of calls to take the busy-work out of calling home and help you just get started with the day’s calls. This makes it easier to build the habit of calling home each day.
Balance – You can track both positive and negative phone calls to ensure appropriate balance of both types of calls home to families.
Accountability – You can show kids that you entered their family member into your playlist for the day. They see for sure that you’re going to follow through.
Documentation – You have a record of every phone call home you have made along with its outcome.