Wow. SimpliSafe "support" seems to be an absolute joke. We tried to incorporate the "doorbell pro" into our system. None of the three doorbell pros they've sent work. When online with "support," for over two hours (total) over the last two weeks, it has become apparent that most of the folks answering the "support" calls have no clue about either the hardware or the software they are troubleshooting by phone. Some believe that the necessary (?) "chime connector" is included in the doorbell pro unit. Some believe it is a separate item that is necessary to make the doorbell pro work in most circumstances. When they sent out the THIRD doorbell pro, they said they were also sending out a "chime connector," but there was no separate item, just another doorbell pro that wouldn't work. We were then told the the "chime connector" is incorporated into the doorbell pro. Now that the THIRD doorbell pro does not work, we have been told that we need a separate ""chime connector," which they now say they are sending as a separate item. In any case, anyone can understand why we've totally lost confidence in SimpliSafe, their product and their customer service/support. Most times we call, we get off shore providers, receiving their phone calls at home, with dogs barking in the background, children crying and doors slamming. The support people do not speak English as their first or primary language. Some are barely understandable, due to their strong accents. All of the offshore "support" people have been, basically, clueless. Again, the "doorbell pro" and its customer service/support are an absolute joke. Someone suggested we send the whole system back for a refund and find another provider. That might be our best solution.